Ever since I can remember the domain never seemed to have a developed website which mad it unattractive. But I would think in a non-recession era it would fetch between $50 and $100 million dollars. Business .com had sold for $345 million back in 2007.
http://www.harry-inc.com/businesscom...or-345-million
A hedge fund manager with a big ego can buy this like a pack of gum...since they were making like a billion dollars a year.