We seem to have this "discussion" every couple of months or so, and the same arguements get trotted out. There has never been anybody who has ridden in the back of my car that has said "What ya got in this thing...AIR SHOCKS???...Rides too rough".
To each, their own, I guess. I still use a set under my Dart, and they ride fine, and, just give me an inch or 2 of lift. Cheaper than new or re-arched springs....and I can adjust to whatever height I want.
Rant off....