Recently in the past several months there has been a craze over Ken Griffey Jr.'s "Bubble Gum" card. Collectors and super collectors have been trying to get their hands on the 1995 Pinnacle base card ...

Throughout the month of October, Collectibles on SI provided consistent coverage of the rapid and seemingly inexplicable rise of the 1989 Upper Deck Ken Griffey rookie card as it shot past the $4000 ...

Have you ever flipped through an old box and stumble across an Upper Deck Griffey that's been hiding for years? I did earlier this year. I remember how Upper Deck took the card world by storm when ...