I have a '94 Allez Pro steel bike with the original Shimano Tricolor 600 shifters and derailleurs, and the thing shifts and rides like a dream. Because it's steel I can ride the hell out of it with confidence. I think the reluctance on the part of people to buy the old Elites is a lack of confidence in the longevity and durability of a very old CF/aluminum frame, and I suspect that's a pretty well-founded fear. You might want to buy this as something to toy around with, but I wouldn't make it my daily rider.
Oh, and I really wish I could put 28mm tires on my Pro--the 25s are the only thing I don't like.
If there's anything obvious that looks like damage to the frame or fork, don't buy it for any price unless it has parts you want to use.