I do some steel challenges and local shoots. I wanted the threaded barrel because I've got a bunch of guns and have almost all of them suppressor ready. After I started shooting suppressed, I fell in love with it. Having no need for ear protection is neat. Sometimes, a few of us will go shoot only suppressed on all guns. I have range on my land (Oklahoma) and have friends with land where we shoot steel up to 1,500 yards. Use some HC guns and some just really loud guns. Shooting suppressed is handy.
Add to that, I just like the option.