Six of the most watched sports cards on eBay from September 12, 2012 - September 18, 2012 were from the 2011-12 Fleer Retro Basketball set and four of them were the Precious Metal Gems (PMG) insert cards. A total of five Michael Jordan cards and one Magic Johnson PMG Green ranked in the top 10.
Collectors have flocked to buy 11-12 Upper Deck Retro Basketball pushing box prices north of $500 just weeks after release (originally solicited for $200 a box). The PMG's are not the only thing collectors are after, the rare Jambalaya cards are really rare, less then 25 for each player and a Jordan sold for $1,511.00 during the week. That might end up being a good deal, only time will tell but I'd scrounge up some money to pay at least $1,000 for one of those right now.
PSA 10 Fleer Michael Jordan Rookie ranked number two on the top ten and sold for a little over $8,000.00. A rare 1/1 Mike Trout rookie autograph from 2012 Tier One was the most watched baseball card checking in at number five on the list. Check out Sports Card Radio for a weekly top 10 list of eBay's most watched cards.