For English non-misprinted TCG, this quote by @budget is pretty accurate:
OCG is another ting entirely though, as already mentioned by @papafrankgod above.
And misprinted cards are even another thing. The TP2 Morphing Jar (also mentioned in the quote above) has a Jinzo holofoil error for example. I’ve seen two sales recently for 2.5k and 3k USD respectively, and I saw someone looking for one today for 4k USD.
I also recently bought a pretty modern misprint myself for 2k USD (COTD Prismatic Rare error - nfortunately no picture yet, since it’s still incoming). Misprints can go pretty high for popular ones.
Greetz,
Quuador