Good move
Scott Blum, 38, buy.com
He’s ba-a-ack! In 1999, Blum sold his controlling interest in buy.com, the discount e-tailer he founded, to a Japanese investment bank for $230 million. “I got ridiculed for selling,” he says, “but I felt the market was getting out of control. The company was trading at a $5 billion market cap.” The bubble soon burst, and in late 2001 a deep-pocketed Blum was able to buy the now-profitable company back for a mere $26 million.
http://www.fortune.com/indexw.jhtml?channel=artcol.jhtml&doc_id=209307
Also see this for a fun list: http://www.fortune.com/indexw.jhtml?channel=artcol.jhtml&doc_id=209303