Guess I could respond like a smart*** too, but I won't. Don't know why you feel the need to be that way, but if it makes you feel special, keep it up.
It's a fairly easy piece of equipment to use, and someone who is reasonably artistic could get some pretty cool results. Doubt you'd be able to rent one from Home Depot, and if you could it wouldn't be worth a crap. Renting spray equipment is never a good idea because people don't care to, or don't know how to take care of them. All that being said, it makes perfect sense for this to be what is used on any scenery for all the reasons listed before, and honestly it reveals a lot about how much of the themeing, from a paint perspective, was achieved resort wide.