Which is entirely personal choice IMO, whether for appearance or use. I have blued and browned muzzies that have 40 years of use, still with no "issues" despite never shooting anything by real BP and cast RB's in them. Cleaning is cleaning.. you either do it right or not. Finish has nothing to do with that other than what chemicals you might use to clean with. Nevber found a need for the chemicals, soapy water does just fine. Outdoor use and storage do have issues on finish, but also can be handled no problem by your methods and techniques.
Personally I wouldn't be caught dead with a stainless muzzy anymore than I would be with a non traditional one, including on the Contender or Encore platform. But I am old school, and I get my enjoyment from them by using and following the old ways with them. Doesn't make me right or anybody else wrong, that's just my personal choice.
I can see it all now... showing up at one of our twice monthly reenacters camp-out/matches with a "C" or "E" or in-line muzzy with any finish. It's a very easy going group that camps in tin tents as well as PC tents, but that there would be grounds for a hanging.

YMMV