Jul 7, 1998; Denver, CO, USA; FILE PHOTO; American League outfielder Ken Griffey Jr. (24) of the Seattle ... and mass production quashed any value the cards once had. The New York Yankees were ...

His claim to fame? Owning a jaw-dropping 142,438 individual cards of baseball icon Ken Griffey Jr., a feat that cements him as both the ultimate Griffey superfan and one of the hobby’s most ...

an Upper Deck Ken Griffey Jr. Rookie card could be a very wise investment. Depicting the iconic slugger showing off his trademark grin, this particular card has “exploded [in value] in recent ...

Cards from the 1980s and 1990s hold a meaningful place in the hobby. Some of them still influence the market, years after ...