For rotating or for brake inspections I crack 'em loose with a 4-way before jacking up & spin 'em off with a corded/cordless drill or lite duty impact, according to how well greased or not bunged up the last time off. They spin right back on with the little guys to be fully torqued in steps (20,40, 60 ft/lb, etc) once back on the ground.
Impacts usually bust stuff loose with even the smallest tank, if hoses/fittings are big enough as sound guy says. Air consumption isn't that high once they're spinning, but folks expect a lot from 'em anyway. btw: Anything else but an air-nailer is too often expecting too much from single-stage compressors or small tanks. Grinders, jitterbbugs, sand blasters, DAs, etc run best from 2-stage compressors due to volume demand. Oh, and air ratchets are air hogs too.
Production lines use air powered stuff for convenient replacement and cool running (drills, nut runners, etc). BTDT, but most times I'd rather run a 12 Ga cord than an air hose in my shop. HFTs may be 'throwaways', but I haven't busted or worn one out yet in 20+years. YMMV if you do/don't use 'em every week. Oil 'em per use. MMO works fine and won't gum up vanes.