Every year I get hit up for a contribution to my alma mater. Last year I asked the board member who was calling me for the donation if they were going to raise tuition again. He said that as long as they had more applicants than they could take, they would keep raising tuition by about 12% per year.
I realized that by subsidizing college tuition with Pell Grants we were just encouraging them to raise tuition. They are not going to stop raising tuition until they become unaffordable and applications drop off.