I'm sure it's a lot of work for him, mostly maintenance and cleaning. Also it sounds like the remote operation hardware and software are provided by him-- that can't be trivial and probably means he doesn't break even on a given telescope for a few months at least. Plus whatever it costs him to recruit new customers.

I bet he makes a good living on his labor and whatever capital he has tied up in the land, but it doesn't sound like an easy business.

He's got 10 barns with retractable roofs to maintain, plus he offers maintenance of the scopes themselves. On top of that, it sounds like a full time business he's running. But yeah, a very nice business.