I have one of the last Model 29s produced (pre-pact), and it's a combo of old and new features. For instance, it's polished blue, but it has neoprene grips. IMHO the dull-looking neoprene doesn't look near as good with polished blue as wood used to look. However, I admit that the old checkered wood grips were not especially comfortable to shoot, at least for me, and the neoprene is a practical improvement. The hammer on my 29 is the old forged full-target style, but the trigger is MIM. Function is fine, but these two parts look a little odd on the same gun.
I've been thinking that in my younger years stainless S&Ws were a novelty. I guess the demand must have exceeded the supply, because I remember the local dealer wanted substantially more than list price for a Model 64 (this was around 1970). Nowadays, of course, blue and nickel guns are the exceptions. Times sure change. I have nothing against stainless. But I like the other finishes as well.