But here's the thing. I'm a collector. So when I see a cool piece of cardboard and it's cheap, there's a good chance I'll buy it... even if I don't follow the sport.
Here's a 2007 Ace Authentic "Materials" card of Novak Djokovic that I picked up earlier this year for $1 (free shipping).
Djokovic has had his ups and downs in 2012, but last year he dominated the ATP Tour winning three of the four Grand Slam Singles Titles (Australian Open, Wimbledon, and the U.S. Open).
On Monday, he faced Olympic Champion Andy Murray at the 2012 U.S. Open, but lost in 5 sets in what ESPN described as a battle of epic proportions. Hopefully he'll bounce back and eventually regain his status as the #1 ranked player in tennis.
Okay... here's your question of the day:
Outside of baseball, basketball, football, and hockey... do you collect cards from any other sports?