I've noticed that the 41 has a loyal cult following among knowlegeable shooters. It shares this with the 44 Special and the 10mm, all less popular cartidges that demand handloading to be practicle but retain stati as "rounds of choice" among some who have their pick.
I am a 44 Special fan and use the magnum when I need more power. Already have dies, shellplates, and bullets that work for both, hence have no interest in the 41.