I think $60 per hour is a little steep. I would liken it to a hobby shop where you wouldn't be in it to make a lot of money, you would just do it for fun. $60 bucks an hour would be right up there with full scale airplanes.
I have seen ads for the Colanades r/c community, if you could set up something there where you are the resident instructor that might work. But you are only looking at a few hours per person. An hour of actual flying is a lot considering a single flight only lasts about 10 minutes. And after 6 flights or so, a lot of folks could solo by then.

Additionally, it would only be feasable for someone in the immediate area (50 miles or so). So why would people go to the "Flight School" from, for instance Ohio, and spend a week with motel and food just to learn to fly when they can do it in their area for free.

Don't get me wrong, I think it might work but there are a lot of things to consider.