[dchichkov]

A state or a small country can afford maybe a few schools like that. You need state sponsorship, endowment money or a district where property values ballooned out of control. And with a lot of money at stake, it's very likely that school administration compensation will be ballooning instead.

Connecting schools with a university system could be a more viable option. Make it easy to teach in a nearby school, pay reasonably for tuition and a university can be a source of PhD students and postdocs that could get some easy pocket money as guest lecturers. I think, it's also refreshing for PhD students and postdocs to give classes to younger kids.