Vito,
Has your son looked at any state schools that the state you live in may have reciprocity with? The flight costs are always going to be high, but if you can save on the general tuition costs it will add up a bunch in the long run. Also...a few guys I knew through flight school went into a 4 year program with a PPL already in pocket that they got at a local FBO...they said it saved them about 10K over doing it through the school...just a thought.