When I find an underpriced but potentially somewhat valuable bike it may get what I call the "ultimate overhaul. I get somewhat bored so to liven things up I'll dissassemble everything and I mean everything down to their elemental parts then jumble everything together in a pile. Then I sort, clean and re-assemble the cleanest, most nit-picked bicycle in captivity. About half way through the process I wonder why I did such a stupid thing and promise to never bother doing it again. Yet a few weeks later there's another small mountain of metal, rubber and plastic at my feet. And when I tell a potential buyer that I've gone through that bike I mean it.