"I would expect the most affordable schools to be those that cater to a large proportion of the population in a cost-effective and fairly standardized way, and

"I would expect the most affordable schools to be those that cater to a large proportion of the population in a cost-effective and fairly standardized way, and that those would be by far the most popular schools." I would actually bet it would be the mid-priced schools that would be the most appealing to the masses, because nobody wants to be (or be seen as) the parent sending their kid to "the cheap school" unless they absolutely can't afford better.