I just think that there isn't enough new converts to need NEW halls being built. I am sure they are still doing it here and there, but I don't think there is much growth in my area.
I did have lots of fun doing them, back in the day... but the safety was a joke. I remember being 14 yoa and being given an air nailer after a 5 minute lesson. I was on the roof air nailing shingles in. I even got my picture in the newspaper... but seriously who would give a 14 yoa girl an air nailer? I could have had an accident so easily.