Peter Woods, president of the National Association of Scholars (NAS) has written a thoughtful article on the criticisms, attacks on, and value of for-profit colleges. NAS is concerned with supporting the value of a liberal arts education, so one wouldn't think they would be much concerned about most for-profits, which tend to be highly career-focused. But he says "But they are very much part of what I take to be the fundamental transformation of American post-secondary education—and that is very much a matter of concern to NAS and to anyone concerned with the survival of liberal education.
You can read it here in 4 installments:
Part I "For-Profit Colleges on the Brink."
Part IV "For Profits Break the Monopoly on What a College Can Be"