The cheapness and ease of control of drones, I think, makes it reasonable that they've had their recent explosion in popularity and have generated a much larger following than the old RC flying clubs.
I've seen big RC helicopters, kinda wanted one, but never got around to spending the time to do the research such a big purchase would require, nor learn how to to hover and deal with the pendulum effect, etc. The ones I was looking at were gas powered and had metal rotor blades though I know they come in some less dangerous varieties.
On the other hand I recently went down to the toy shop and for $40 bought something I could easily fly around my house and have no problems letting friends children fly around my pets.
Note that I also have a couple tiny plastic RC helicopters, but I've seen few other people with the patience to build skill at flying them around the house.