The stainless steel will suffer fine scratches from holster use. High polished stainless will not show these as much, but they'll develop nonetheless over time.
Stainless can be repolished fairly easily with various materials also. Many use a scotchbrite pad on the brushed stainless, but a buffing wheel on a dremel would work for the high polished stainless [ just be careful and go slow ].
If you want to carry the gun, the fine scratches are considered "character" and people know you actually carry the gun and it's not just for Bar-B-Q's and show.
I could care less what my carry guns look like, it's a user gun and a tool. The collector grade guns aren't bought for carry so they stay in pristine condition. You have to decide if that gun is a carry gun or just an occasional range/Bar-B-Q firearm.