As much as I'd love a perfect, original, mint vintage watch, I've never actually bought one for fear of actually wearing it. The way I see it, if the watch made it through decades with absolutely no wear, I don't want to be the guy to change that. I'd much rather have a slightly worn watch of the same type that I can add a bit more wear to guilt free.
That being said, I'm not a fan of heavily patinaed dials and cases. While they can very attractive, since they're all unique, it's hard to get excited about them unless I have the opportunity to buy that specific watch at that specific moment. I'd rather one that's worn, but otherwise cosmetically close to how it left the factory than the 'piece unique' that is a patinaed dial.
I'd also much prefer a scratched, but unpolished, case than a heavily polished one. I'm also not opposed to refinishing a case to bring it back to original condition and finish (only start scratching it up again, of course), but since that's a large monetary and time investment, I haven't done that either.