Usually the district pays for text books and busing and they are required to pay for special ed in their own public schools, They are only required to pay for special ed in private schools if the parents can prove the public schools are inadequte for their kids
And Inadquete does not mean you dont want your kids in a mixed gender class with non-charedi kids talking about TV and pop music. It means stuff like the class size is wrong for your kid or they dont have the exact services your kid needs to help him learn better