FWIW, a year or so ago, I paid $450 for a Model 96 in not as good a condition and thought I did OK. If you follow the S&W design from that gun to the 1899 to the various versions of the M&P to the modern guns, you can see a steady progression of design features, all with two goals - making the guns more reliable, and making them less labor intensive and less costly. That is why I don't get excited about MIM and other new S&W design features; they are not some radical departure, they are just part of a steady company philosophy of producing a better (not necessarily prettier) product at an affordable price.
BTW, that cylinder stop is made like the one on the old No. 1 and 1 1/2, so it was quite a step backward. It is a split spring, designed so a projection on the hammer will lift it up out of engagement with the cylinder, then release it to re-engage. When the hammer falls, it spreads the two spring arms of the cylinder stop so the stop stays engaged. It is not a bad system but the spring arms can break so it is not as good as the coil spring powered cylinder stop used in the later revolvers.
Jim