I got 400$ for a late 80s campione d'italia here in Kitchener in the spring but I had upgraded the drivetrain with new 10-speed stuff since I was starting with a frame and had that stuff laying around. Assuming yours was in good running condition and all finished I'd think you could get that for it with more original stuff on it, depends on the buyers I guess. I'd hold on to that Marinoni myself, what a gem... but I wouldn't know what to say for the other bikes.