>>1294779If you do check out that merckx, or any other classic campy bikes, that stuff is really good quality, and nice to ride, but it's going to be expensive to service/ replace parts, if you can even find them, and by now from a serious rider is probably pretty worn. I would definately buy a lightly used 9/10 speed campy bike though. Especially a high end steel/ti one.
You do sometimes see garage queens though which have barely been ridden. One way to tell is have a look at the hoods. See how the rubber is kinda textured? On a really heavily used bike, it will be worn completely smooth in patches. They're rarely replaced either. It's a good immediate tell.
Also feel for much play in the rear cage meaning the derailer is basically ready to be set out to pasture. And wear on the chainring teeth and if they're the original campy ones.