Originally Posted by Sly

Average public student across the country is around $11,500. We have to take the average because prices per area do change. Here are some stats: Fast Facts

Here are some stats on private schools: Private School Statistics | Statistic Brain

The nonsectarian schools are most likely your "Ivy League" style schools for kids that are more expensive. People with money will send their kids to those schools regardless of what other schools are available.

I went to private school for a few years and then public school (the best public high school in my area.) My brothers went to private school. They hands-down had a better education than I did. If I were to have kids, they would be sent to private school. No question.