Interesting that you want blame everything except the actual major source of expanding costs at colleges: an explosion in the number of administrators and administrative departments. Rising tuition is being spent on bringing more and more aspects of students' lives under the control of college administrators. Scandalously, almost none of the new money has gone to hiring more professors. Something is rotten in the state of higher education and it's the bureaucrats running the colleges, set free from financial reality by heavily-subsidized student loans.