[irv]

Originally Posted by prestigecollectibles

In 2007 Sotheby's had their Important Sports Memorabilia and Cards auction.

http://www.sothebys.com/en/auctions/...ds-n08385.html

Looking at these sets from back then, I'd say some people have a pretty good ROI if they were the lucky winners.

(Use arrows to go back or ahead to different years/sets)
http://www.sothebys.com/en/auctions/...5/lot.333.html