Oh! card is going to be worth more than what it means to the person who holds it but some are quite valuable. Here's how to ...

Based on a Japanese manga series by Kazuki Takahashi in 1996, Yu-Gi-Oh! has grown into an anime TV series, feature films, books, toyline, video games, and a very popular trading card game from Konami.

Unfortunately for collectors, most of the cards they picked up in 1989 are barely worth the cardboard they're printed on, hence the "Junk Wax Era" moniker. However, a notable outlier is the Upper Deck ...