Dailywax

Riding on the heels of Olympic record 8th gold medal, the boy wonder, Michael Phelps has ignited a fire in the sports cards scene as well. Collectors are frantically searching for the 2004 Leaf Football Fan’s of the Game Autographed insert from Phelps, which in the last week its price has surpassed its weight in Gold.

This card has shot up in price over the past week of the Olympics, reaching monumental highs of $850-$1000. Prior to the Olympics, this card could be picked up for around 1/5 of those prices.

I have not found any numbers on total circulation or production.