Okay, then, that's comparable. My school listed day tuition as $29,820 for this year. And the stables provide horses, but they don't GIVE you a horse. At my school, you could take riding as part of the phys. ed. program, and either use the school's horses, or bring your own from home and board it there, for a pretty hefty fee.
If you look up thread, I posted a bunch of rates from local elite schools in the DC area.
Only one cost more than public school. (I want a pony! LOL)