I paid 750 USD for my FPO Charizard and about 650 USD for my E1 Unlimited Bulbasaur.
I would be willing to spend 5-10k on either a TMB Beedrill or a Distributor Munchlax.
I have also been interested in purchasing a History Gate for some time. I would need to sell some things to acquire any of those three cards which is the hard part.
around 1k
I am eagerly awaiting the day when a certain PSA 7-8 card pops up in the EU. I have €800 ready under the pillow.
Most I’ve spent on a single card was £370 for the PSA 9 Skyridge Ho-Oh I picked up last year, because like hell I wasn’t buying it for that!
Trouble is, the more I pay for something, the more it shifts the goalposts upwards. Before the COVID boom, I hadn’t paid more than £30ish for a raw card, or about £50 for a PSA slab. During the boom, that slowly crept up to about £70 for NM bigger WoTC holos, and around £80 for a slab.
Then the £100 window didn’t seem like a big deal for a slab anymore, so I paid around that for something…then I bought a slab for £150, because it was a decent deal, so £200 was close enough to palatable for something good, right?
From there I spent £250 last spring on a bargain PSA 9 Japanese Shining Tyranitar (because I’m not an idiot), so that pushed the scales even further, then buying the Ho-Oh in the autumn made £400 feel like no big deal anymore.
Trouble is, I could technically afford to a spend lot higher, but self restraint has always kept me in check - it does boil down to perspective that these are just bits of cardboard at the end of the day - but I worry that the higher the scale pushes, the closer I get to making a stupid purchase.
It heavily depends for me. The only cards I buy nowadays either go in decks I play (and aren’t very expensive) or are part of my Piplup collection, with a few cheap art rares occasionally if I come across them in-store.
Several cards I have on my list for the Piplup binder are in the multiple thousand range, but I can’t see myself actually buying them any time soon (if ever).
I think my limit on a card at the moment is somewhere in the $300 range, but only after some serious thought and if it’s something that doesn’t come along often (or ever). $80 is about the cutoff for cards I feel comfortable just snapping off, and even only if those are below market or don’t come around often.
…that being said, if I ever see an SDCC stamp Piplup go up anywhere, I can make my budget flexible, haha.
The most I’ve spent on a single card is roughly $90 (CGC 8 Natta Wake Hoppip), and I think around that range would be the most I would be comfortable with at the moment for a single card. I have a separate savings/budget for cards that exists completely independently from my income and savings for life- and family-related things (meaning no infusions from my typical work income into my card budget), so this helps put into perspective how much I have to spend and how much a large purchase would eat into that amount. Even things in the $30 range, I still have to sit on and think for a bit 
But I think looking for good deals on cards is part of the fun for me, so I don’t mind spending time to try and stretch the budget a bit farther.
$5,000 for my BW-P Rayquaza/Giratina SRCSG, but I had a big sale that funded 80% of it. Otherwise, I try to keep most single cards under $1,000. My bills are 25% of my take home 
It depends for me really. I remember the first card I bought back in 2016 was a Base set 2 pikachu (Still have it, and cherish it) for like $1.50, and I remember thinking I wouldn’t ever spend more than $10 for a card. Fastforward to today. My max is typically in the $200 max range. I spent $450 on my Mox Diamond from MTG, but that is the most expensive card I’ve ever purchased.
Most I’ve spent was about $50 each for a pair of the Skyridge Magneton holos. I fomoed a bit during Covid and bought them because for whatever reason I thought people were going to stonk eseries. I don’t know.
My individual limit is still at $50; maybe $100 for a really special card but as a peasant collector those don’t occur much.
the most i’ve spent was $1200 on a BGS 9 Fan Club Porygon. I never thought I’d spend 4 figures on a card, but saved up for a couple of years and it was a true grail for me. now, my goal cards are somewhere in the $200-$400 range, and I anticipate buying one or two of them per quarter
I don’t necessarily have a limit, but for modern set card I wouldn’t pay over $100. For a set card maximum of $300-500 except for 1st Ed WOTC. For prizes and trophies I don’t have a limit unless it’s within reason and doesn’t affect me financially too poorly.
Whatever I can afford. Atm that doesnt feel like a lot but I was looking to spend around 2k last year for a mario pikachu (didnt find one before giving up). After school, if I start to (hopefully) make decent money, I can see me spending much more on cards.
I don’t have a limit where I wouldn’t be comfortable spending, to me it’s more about what I can do with the purchase and where I’m going with it. For example, I won’t hesitate to drop thousands on major ungraded (or even graded) card purchases if I think there’s room to generate value, fill a big hole in my collection, etc. But sometimes I have a hard time pulling the trigger on a $200 modern card order where I just like all the card arts.
As others have send, for me purchases greater than $500 are usually funded by selling other cards or making other changes in my collection.
I have a hard time justifying a purchase over $100 for a single card even if I could afford it. I think most I’ve paid was $75 for ungraded of any TCG, pokemon specifically $50. As much as I want a moonbreon for example I had an opportunity to buy at $180 but I didn’t want to spend even that much, now it’s $500 and I’ve written it off as a card I’ll never own. I’ll print my own out jumbo size and frame it for that price.
For me, I typically set the upper limit at $300, and cards that expensive I spend a few months saving for. I pretty routinely buy cards in the $40-80 range. Anything above that is infrequent.
I’ve only ever spent more than $300 once, on a base set Charizard that was in decent shape, a PSA 7. However I regret the purchase so hard because it was an impulse buy during the peak covid/logan Paul hype in 2020 and so I got so much less for my money than i would have even 6 months later. Live and learn 
I’m 8 cards off a complete PSA 9 1st edition Rocket set. So the highest I’ve paid so far is £290 for the Dark Blasty, second to that was £200 for the Dragonite. The one that will break the bank will obviously be Dark Char and not willing to pay more than £550 when the time comes.
This is a question with two answers from me.
The amount I am willing to spend of money I have made from selling cards? Practically no cap, as long as the money from cards is there. The most I have spent is 1600 AUD.
The amount I am willing to spend of money I make from working?
50 dollars at best.
Wow the answers are lower than what I expected! Think the maximum I spent was 5k usd on one single card. 
I too am a bit surprised, given the type of cards typically discussed on this forum. Looking at the most recent purchases thread you’d be forgiven for thinking most people here are comfortable spending 4-5 figures on a card.
Most I’ve spend on a single card is about $3500. I too fall into the boat of spending mostly from other card sales for these big ticket card purchases. That amount is not really in line with my monthly income. What @Nexusak said rings very true for me. I’m stuck between too big of an outright purchase, and having to sell of a lot of cards to fund it (which I’d love to ‘trade’, but the uncertainties of selling and buying and the time it takes is whats keeping me from moving ahead).
