I try to keep my guns as nice as possible.....but if you actually use one it is bound to acquire some character over the years.
Nearly all of mine have a bit of wear here and there, partly because I very rarely buy a new firearm and partly because I shoot my guns and a certain amount of wear is inevitable.
Probably the most worn gun I have is my old Model 29, made in '59 and likely shipped in 1960, it has been carried and shot a lot.
On the other hand, I have a Colt Single Action that I bought second hand, but NIB. I shoot it, but try not to ding it up.