Then again, why stick to baseball cards? Have you seen what gold has done over the last 20 years? Back in 2005, an ounce of gold could be had for around $400. Today, that same ounce is worth about ...

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 ...

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 ...

Unfortunately for collectors, most of the cards they picked up in 1989 are barely worth the cardboard they're printed on, hence the "Junk Wax Era" moniker. However, a notable outlier is the Upper Deck ...

Upper Deck's 1997 product revolutionized baseball cards with the introduction of the first patch card in the Game Jersey set.

What collector or investor wouldn't want a time machine? Just imagine setting the dial for September 1952, scooping up all the 1952 Topps Baseball packs you could (for a nickel!), and pulling Mantle ...