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 ...

Add Yahoo as a preferred source to see more of our stories on Google. 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 ...

Fast forward to today, and the Griffey card shows no sign of dropping below $4000 any time soon. On the contrary, the card appears headed to a level considered anywhere from ridiculous to impossible, ...

There was no better feeling in 1989 than pulling a Ken Griffey rookie card from pack of Upper Deck. The card wasn't serial numbered or short-printed, so it was a feeling that came with just about ...

There’s seemingly no end to Shohei Ohtani’s dominance both on the diamond and within the baseball card world. Ohtani cards commanded the most money on eBay from March through August tallying around ...

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 ...