I have a model 19 I bought in 1963, I took good care of it and it still looks like new. That said, check the current prices of blued M-19s in with good blue, see what you have in your revolver, add the price of S&W refinish and if it is less than a used M-19 with good blue and correct grips go for it. I have a finish challenged Registered Magnum from 1936, I shoot it a lot because I really like shooting it in particular, I don't plan on ever refinishing it because over the years it earned every blemish. Shoot yours and it may turn out you may decide it shoots great with out a new blue job and spend the money on more ammo.
SWCA 892