as the title says, What piece/item makes your set or collection etc improbable to complete?
For me its (from confirmed to exist ones) the EX dragon championship line packs
Curious to know what it is for others 
1 Like
Probably won’t be able to complete my wotc 1st edition/unlimited binders anymore. I’ve been priced out. Collecting newer and more exciting things now.
2 Likes
008/P
16 Likes
Fan Club Porygon. All of Imakuni’s cards are affordable… except that one card. As a completionist this makes me sad.
6 Likes
Im never going to find a PSA 10 LC Rev Gengar
2 Likes
PSA 10 1st ed. Typhlosion 17/111 has been the biggest nuisance to find for me since late 2014. 
8 Likes
My Sugimori art collection is only missing the Trophy Kangaskhan art, and it probably always will be
5 Likes
Never was a fan of Charizard, which I did regret years ago when I wanted to complete the Base 1st Ed PSA 9 holo set.
Thought Charizard was too mainstream and bought other stuff instead.
2 Likes
The Unikarp for my Magikarp Collection, way out of my price range
3 Likes
SNAP Gyarados and Magikarp
2 Likes
Master key (for my Celebi collection) and fan club magikarp (for my shining collection)
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Nothing out of reach, because I collect basic stuff, but I don’t feel like shelling out the cash for a near mint 1st base blastoise lol
2 Likes
Nothing too crazy, I collect N cards. The Japanese full art N trainer card, #71/66, has been impossible to find and I assume it will be way out of my price range if I do find it. There’s also the full art Japanese N #180/171 that is way too costly for me to be able to justify any time soon
The only ones I can think of are all those 1/1 trophies with the winner’s face for my “real human” side collection. I’m not losing any sleep over them, though. They’re so far out of reach that I never really considered them to be reasonably acquirable in the first place.
3 Likes
This English e-Reader sample Pichu with non-holo Neo Genesis artwork demoed at E3 2001:
Or if you want to include jumbo cards, the 35 or more 2009 Design Contest 1 of 1 jumbo Pichu cards awarded to the runner-ups.
10 Likes
The lack of benjamins in my wallet is the item holding me back
11 Likes
SNAP Pikachu. There are a lot of expensive pikachu promos that I need that feel attainable - this one looks forever out of reach
5 Likes
The Sample cards and the Asia 2001 Championship trophies, just Ctrl+F and paste. I’ve got mountains to climb and abysses to sink into and then there’s those, sleeping in someone’s estate desk. I was close last year making a deal on the limited to 10 wooden painted artwork box to this album made by the deceased founding member which is the sole huge piece of lego to step on a thankfully descending near completed area.
I don’t have any one single card that I won’t be able to get, but given the price increases over the last year the amount of money required for the goals I had been on track for has become a pretty staggering amount of money, and is more than I can spend on shiny cardboard at this stage in life.