Yup, I started taking advantage of such free courses several years ago, because of this guy:
http://www.nytimes.com/2007/12/19/ed...4c9&ei=5087%0A
I don't need another degree, but I've continued to take college courses on-campus, sometimes at employer expense, sometimes when profs have let me sit in for free. Learning for learning's sake is very satisfying.