You need to understand Smith & Wesson collectors...
The "big time" ones generally stick to pre-World War One revolvers. They like perfect examples when they can get them, and will pay fantastic amounts of money to get what they want.
Case in point: I watched an auction this past weekend where one lot was a late production .38 Safety Hammerless. They were S&W's first enclosed hammer revolver, and were so popular that production lasted from 1887 to about 1940 - in other words they are not rare. But this example with walnut stocks, nickel plated, with a 4-inch barrel was in absolutely perfect condition. Not a mark on it anywhere and likely unfired. No box or papers.
Going toward the high side I would value it to be in the $500 to $600 range at best. When the hammer dropped it went for - are you ready? $1,800 + the auction house fees and commission.
What you are seeing here is a "Serious" collector that has the necessary money, and is determined to get what he wants.
Now on the other hand you have a lot of folks that would like to have a nice collection, but collecting the better 19th century guns is out of the question. So some of those that cannot play that game are turning to much more affordable hand ejectors (in particular, I and K frame models) that were made from about 1900 to around 1960.
As a result some of these are beginning to go up, and while still available at more reasonable prices represent the best of two worlds. The have an investment value (both long and short term) and can still be used as shooters unless they are mint, like new.
The revolver that is the subject of this thread is an excellent example of what I'm trying to get across.
Should it be factory refinished? Perhaps, but look at all of the angles first. If it is refinished the potential collector's vallue will be lessened, and after it's refinished you have the choice of keeping it "like new," or using it, after which the refinishing will soon not be "like new."
I seldom refinish guns I intend to use. Quality refinishing is expensive, and has no affect on the way a gun shoots. I have had shooters refinished when - for whatever reason - I decided to keep but retire them from active use.