I think you should take into perspective the size of the school before you make such slams, kwim? Firstly, as I said, we have THREE sponsoring churches and our school is approx 1/3 your size with students. That $8000 momthly is only from one of the churchs. Obviously your school is going to cost more money to run. Also, you in an urban area, I'm in suburb NJ, in a good school district, it's hard to convince parents that they should pay for a Christian education when their overpriced taxes will give them a good education. In our case, a Christian education supercedes that.
Every parish around Philadelphia, small or large, urban or suburban, contributes large amounts of money to its school to keep the tuition low. The tuition rates (and per capita parish contribution) were not materially different at the school in suburban Malvern when I lived there, which is in one of the top 5 school districts in the state of Pennsylvania.