[ZeroGravitas]

Are those other schools half the cost because they exclude anyone with disabilities or poor upbringings and just cream off the easy students?

If so then you are enthusiastically cheering for kids to be thrown on the scrapheap to save you a few bucks. And using religion as a cover for it, which only makes it worse.

[rahimnathwani]

No. They're half the cost because they don't spend half their money paying for a central bureaucracy. They spend almost all their money on buildings and teachers.