As the mascot of the Pokemon franchise, Pikachu has been made into numerous promo cards, some of which are worth a small fortune. Plenty of top-notch Lugia cards have been released over the years.

The Pokemon trading card market ... thereby pushing down prices abruptly. “Card prices had increased dramatically beyond their original value, much like shares and real estate during a bubble ...

It’s all based on whatever the market dictates," says Trent Humphries of Tolaria East, Inc., a Magic: the Gathering card seller from Miller Place. "Every card is worth as much as the buyer is ...