If I want a very fine firearm, I either spend the money, or, do not.
If I want maximum value, for the dollar, in a carry gun, I buy something like a “blue label” Glock. If it has to be a value-for-dollar revolver, well, GP100 and/or SP101. If I want a very fine firearm, I either spend the money, or, do not. There is no “is it worth it” questioning involved.
Being retired, and on a limited budget, my days of accumulating expensive weapons may be over, and I have enough Ruger revolvers to last a lifetime, but, if I want a Manurhin MR73, I will simply raid my nest egg, and just do it. (I might trade some disused auto-loading pistols, as I am losing faith in my aging hands to maintain a steady operating platform for auto-loading functioning, though, thus far, I have yet to induce a limp-wrist/numb-thumb malfunction, with a Glock G17.)
Regarding S&W K-Frames, well, S&W has done a very poor job of selling revolvers to me, since the MIM triggers and the key holes came along. A recent-production K-Frame is “worth” zero, to me. (Plus, I am seeing too many anecdotes of S&W revolvers with QC and durability issues.)