I went to public school through eighth grade and then got switched to an all-boys Catholic high school. Dad thought it would get me into better colleges and it probably did, though a number of my former 8th grade classmates were again classmates with me at the University of Virginia.
When I was a sophomore or junior, Dad heard of a couple of graduates of my high school who were moving on to lower-end state schools. I'll never forget his comment, something to the effect of, "Geez, I'd never pay the tuition if my kid was only going to get into that school. If you were just an average student, I'd send you back to public school and save the money."
Dad, a career corporate finance guy, was looking at it strictly in terms of ROI. We're Catholic, but he didn't care about the religious education component of it. Also worth noting that my senior year of high school (1986-87), tuition was only $2,300. Private school tuition, like college, has far outpaced inflation over the last 30 years.
This being graduation season and everyone posting photos and comments online of their kids and where they're going to college, I always think of Dad's comments, especially now that a K-12 private education can be $150,000 or more. Then I see what school the kid is going to and, like Dad, I can't help but think, couldn't you have saved the money and just gone to public school?
My two teenagers go to public high school because I just don't see the ROI for private school given today's astronomical prices.