There is a Campy-Only website out there with some real knowlegable folks hanging around on it. I think campy components have alot of little nuances that make some worth alot more than others, but I am far from an expert. I know that the really old stuff brings a premium over some of the more common stuff, and with that in mind, I have rat-holed anything Campy I have found figuring it will be worth 6 figures when I get around to selling it...hope springs eternal...

http://www.campyonly.com/index.html