The trading card industry is booming and still growing, and we’re sure there will be new record sales soon. For now, this is the all-time ranking: 1. Stephen Curry: $5,900,000.

The 1986 Upper Deck signed Fleer #57 Rookie card is the ultimate choice for investors keen on Michael Jordan cards. However, the most lucrative sale stems from the 2003 Upper Deck Ultimate Collecti… ...