That seems entirely plausible. That's in the same territory as boarding school prices for one kid (some are more expensive, of course, but it's around the same

That seems entirely plausible. That's in the same territory as boarding school prices for one kid (some are more expensive, of course, but it's around the same price as that sort of thing), so clearly there exist people willing and able to pay that much for their kids' education. Hell, with a couple kids you can break that much per year at a cheap-end-of-mid-priced day school.