Being Playable rather than Collectable is what gives Yu-Gi-Oh! cards value 99% of the timeYu-Gi-Oh! collectors do not grade cards. They never show up in auction houses or in buy/sell/trade groups on Facebook, people don’t look for them at Regionals/Nationals/competitive events and there’s relatively no demand for them compared to Pokemon because Yu-Gi-Oh! cards are playable. People want to use them because there’s no set rotation in the game. Some people build their favourite decks no matter how bad or meta-irrelevant they are just to own them, some old cards are extremely playable or become playable when new product is released and some are used in popular old formats. I’m deep into this hobby and I’ve never ever heard of someone paying a premium for a PSA graded card that wasn’t a Blue-Eyes White Dragon. The idea is quite foreign.
Cards like 1st Edition LOB Blue-Eyes or DDS Blue-Eyes have only significantly increased in value in the past year because new support was released making these cards the ultimate bling for people that want to build decks, whilst there’s definitely collectors that want to keep them in a binder forever if you grade that card you’re limiting the market you can sell it to. Most Yu-Gi-Oh! collectors will not overpay for cards and are extremely frugal when it comes to buying what we call “expensive jank”. Old unplayable ultimate rares and prize support cards might be listed online but unlike Pokemon, take a long time to sell unless heavily discounted. The collector culture is extremely different to Pokemon’s established market.
Because of this the population for graded cards is low.
More Yu-Gi-Oh! cards are graded PSA 10 than PSA 9
If you don’t believe me then go and check the POP report. Maybe graders have an eye for these cards and only send in the best specimens or that the print quality is better than the average Pokemon card but the numbers tell us that for most cards it’s harder for Yu-Gi-Oh! cards to receive a 9 grade than a 10.
Either PSA doesn’t know what they’re doing or the production quality has very few flaws because most cards are graded a 10. I’ll tend to lean towards the latter because yugioh cards tend not to be damaged straight from boosters like pokemon cards are. I would advise against looking at PSA 10 Yu-Gi-Oh! cards the same way you might look at a PSA 10 WotC holo. Yu-Gi-Oh! print runs for old 1st Edition sets were also much higher than the print run of 1st Ed. Base Set.
A small, shallow market exists for PSA Yu-Gi-Oh! You could probably make a lot of money grading Yu-Gi-Oh! cards and selling them to collectors that are unaware of how easy they are to find or collectors that see Yu-Gi-Oh! PSA 10s as the equivalent of a WotC PSA 10. From my own experience; t****he print quality of Yu-Gi-Oh! is simply better than Pokemon. The only real issue Yu-Gi-Oh! has is centering and even then most cards aren’t off-centre. Cards just don’t come out of boosters with edgewear.
**What SHOULD you buy that’s graded?**PSA 10 LOB* (LOB-XXX, the North American print) 1st Edition Ultra and Secret rares ARE worth buying because there will always be a market for them. Stay away from playable cards and stick to the iconic, original series/“generation”/“duel monsters era” cards from the core sets like Secret 1st MFC Dark Magician Girl, LOB 1st Dark Magician/Blue-Eyes/Red-Eyes because they’re the face of the game and have the same ‘all-star’ appeal as Base set Zard. When you think Yu-Gi-Oh! you think these cards.
Everything just isn’t that sought after in comparison, collect and grade what you want but understand that you’re going to hold something that won’t be easy to move unless you throw it up on eBay and hope somebody bites.
Mass Collector Appeal is the key. The first thing a Pokemon collector would go for when it comes to Yu-Gi-Oh! will be a Blue-Eyes 99% of the time.
Don’t buy Unlimited Graded Cards
I’d like to stress this, stick to 1st Edition cards. I want to say this in the most objective way possible but if someone is buying unlimited graded cards from early Yu-Gi-Oh! sets for a huge premium then they are overpaying. There’s no way to defend it, these sets have been overprinted for years. Some sets that were first printed in 2002 have been printed again in 2010 and once more in 2014/15.
For example, this: www.ebay.com.au/itm/YuGiOh-Dark-Magician-Graded-PSA-10-GEM-MINT-LOB-005-Leg-Blue-Eyes-White-Dragon-/311789017725?hash=item489812da7d:g:l~AAAOSwxN5Wa8~o
This print run of Dark Magician( unlimited LOB-XXX) you can buy them for under $5 raw, even though it’s a PSA 10 it’s still a very easy to find card with nothing to strictly differentiate it from one released in 2002.
The fact he wants $180 is ridiculous but this stuff sells, you could buy 5 copies of this card raw very easily and you’d have a high chance of at least one of them receiving a 10 grade. Don’t compare something like this to a PSA 10 Base Set Unlimited (4th Print) Zard/Blastoise/Venusaur.
Unless you have an expansive knowledge of the hobby stay away from anything printed after 2008. The only 2 cards I could think of with mass collector appeal worth grading which are that recent would be the 1st. Edition Ghost Rare Stardust Dragon and Black Rose Dragon and that’s only because no 1st Edition The Duelist Genesis booster boxes were released and they capture mass fan appeal. They would probably also not achieve a high grade either.
PSA Has Graded Fake Cards
On more than 1 occasion PSA has graded fake Yu-Gi-Oh! cards, it’s a little ridiculous but their inexperience with the game is apparent. The most notable are the fake god cards and a fake giant soldier of stone. It’s not common to find these but be careful.
Foreign Cards
Generally French, Italian and German core set ultra and secret rares are much harder to find than their English counterparts and meta-relevant cards fetch a huge premium however, they don’t have mass collector appeal. I would advise against grading these cards if you plan to re-sell them. Collector’s will almost always prefer North American English print cards up until 2011 where a change in the print process drastically changed the look of US print cards with European print cards being preferred outside of the US.
For a few older sets Spanish and Portuguese cards as they were overprinted. Collectors prefer English print and in 2013 a huge surplus of Spanish and Portuguese Starter Decks, LOB and MRD sealed boxes were sold. You could buy the Spanish LOB boxes for as little as $15 USD. The only Spanish/Portuguese card from LOB with any significant value is Raigeki because it’s playable.
Grading Japanese cards circles back to the “all-star” factor except less people will likely buy them. Collecting Japanese cards just isn’t a widespread practice in TCG regions.
There are some examples of foreign cards which are much rarer than or don’t have an English counterpart, the best examples being TFK Sinister Serpent and TFK Harpies’ Feather Duster. These are extremely rare video game promos that were only released in Spain.
**If you really want graded Yu-Gi-Oh! cards, aside from a handful of exceptions you’re better of buying a few copies of a card and getting them graded yourself. This runs contrary to Pokemon but the sheer number of cards that are graded as a 10 by PSA suggests that this is the way to go.
Maybe this will change in time but right now it’s a sellers market because this stuff just isn’t being graded. 1 determined collector with a PSA membership could probably crash the market for 1 particular card… or make a lot of money grading and then selling cheap cards.**
Here are some examples of what I would stay away from:

The print run for the Starter Deck: Kaiba Evolution was huge and this card is basically a bulk holo. There is absolutely no demand for this card and you can buy the sealed product it came in for less than what this card sold for.
Also, this:

This RP01 Blue-Eyes Ultimate Dragon was a guaranteed promo in a $10 USD product^. You could buy at least 25 nm/m raw copies for the asking price here and they are not hard to find at all.
*[The North American Print is the easiest print of LOB to find but it’s valued more… because it’s preferred? Nobody really knows why and the European and Australian English release cards came out at the same time and are much harder to find due to smaller print runs. The rarest English print run is the unlimited print run with the card code ‘LOB-ENXXX’ fyi because they weren’t released in boxes, only a select few promotional items. The ultras and secrets are almost impossible to find online]
^This card was not released in the US however in all other European territories where English cards were sold the product it came in was priced the same way a $10USD product would be priced.
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