It ain't cheap for sure! I was fortunate in that because my dad was who he was, we got the church worker discounts, which was really a blessing going through Pine Forge and Oakwood. I went to several church run elementary schools, starting off with Linden and finishing with Bethesda in Amityville.
My son just finished Kindergarten, and thankfully the costituent cost per month was so much less than the non-constituant cost.