I would classify this card as an impulse buy, but at $8 I thought it was unique enough to go ahead and grab. The seller that had this card was liquidating several high end Brian Giles cards. While many were from his Padres days I did snag one Pirate era card besides this one.
These convention 1/1's were made to raise money which would allow free admission to kids to enter the National Collector Convention. I don't recall ever seeing the baseball versions. Topps created the football versions and plenty of those are on eBay.