Back during the apex of the Pokemon card craze in the late '90s, certain holographic cards could net you a sweet $100 or more due to their rarity and the fact they were, at the time, the best cards in the game.
However, very few of these early cards have retained their value, partly because better cards exist today but mostly because there are thousands of them selling at any particular point in time. In fact, if you take a peek at PokemonPrices.com, which does exactly what it sounds like, even cards like a holographic Charizard (a veritable jewel in the '90s) can be picked up for around $15 if you shop around.
Of course like with anything, some cards in amazing condition are worth more. While there are cases of a few first-edition Pokemon cards selling for thousands of dollars, these are the exception rather than the rule. If you still want to hitch your economic wagon to a team of Ponytas, the costs of doing business (eBay's cut, shipping and handling, your time) "probably doesn't make it worth it," according to a writer from the Dallas Morning News.
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