I am the proud owner of a slightly used S&W Model 21 Classic in 44 Special and it's my new favorite. Did I really need this? No, but I'm glad I bought it-accurate, smooth double and single action trigger pull, and a real beautiful revolver to boot! Worth every penny.
The only down side is that the ammo is about twice the cost of 45 acp and I've never found empty 44 special brass laying around at the range.