i loved the game boy game, it was awesome. i actually had a pretty good deck going that consisted of gastly and evolutions from fossil series, dratini and evolutions, and hitmonchans and hitmonlees. i don't know how successful that deck would be in real life, but it killed anything in game.
after the base/fossil/jungle i wasn't into it as much and then after they launched the gold/silver stuff they really lost me. i still wish they would've released the second video game in the US, though.