My local pusher has kept the TR21 in stock at $699. A friend bought the first one, despite it's deeply engraved turn line. He shot it to be sure it was okay, and sent it back to S&W on their dime. It came back with a new cylinder - and, after hundreds of rounds, barely has a hint of a turn line, appropriate for a blued revolver. The finish is utilitarian blackish blued - a 'carry' gun type, like the 28's. After all, the 21 is a fixed sight carry version of a 24.
I am dreadfully sorry, but if I wanted a .44 Special N-frame, I'd go grab a new 629 Mountain Gun, once again available from S&W. I believe my pusher has it at $579. Sure, it really is a .44 Magnum, but mine loved Specials and Russians, it's diet for >2.5yr. You could add both a Hogue X-frame/.500 Magnum backstrap-enclosing grip and a cocobolo Ahrend's wood stock, a la the TR21, and still have money left over for ammo, too. The Ahrends will be perfect, both in look and feel, for Specials and Russians. That Hogue will make the 629MG manageable with .44 Magnums, too. Of course, that is my opinion from my personal experience.
I guess the hardest thing to rationalize with the TR21 is it's price. I paid less for a lot more gun when I bought my Heritage 24 ~1.5 yr ago. I just don't care for fixed sight 'duty' style guns as plinkers. The 2" 10 and 2.5" 296 I have hit coincident POA/POI at 10-15yd with my regular PD ammo - I thought my 3" 65-3 might actually be a Vaquero, it shoots so low with my PD ammo. Thankfully, that can be remedied with a file and some polish, too bad with a blued revolver. I guess, if I had a TR21, I could just touch it up with some CI stove paint. But... a change in ammo and - oops!
Stainz
PS I bought my 696 a month or so after my 629MG - it is my favorite .44. I am on a mission to wear it out, one might think... a great plinker!