I suspect the recreational use of drones will eventually decrease, after this initial wave of popularity, once the novelty aspect wears off. After all, unless you're an enthusiast -- a relatively small number -- what can you really do with a drone after you've flown it around the neighborhood a bunch of times? How long that will take, however, is anyone's guess. Right now there's a declining cost curve, which will probably attract more buyers, but eventually the market will be saturated and people will move on to the next fad.