I've already got a BA in business, and while repaying college loans, I really can't afford to pay for college classes to be able to meet with a professor. Besides, I'm not sure that college courses would teach me electronics and programming faster than I can teach myself. (College was a good experience, but I'm not trying to get another BA)
I'd almost like to start a service connecting interested learners with subject-matter mentors. In fact, some type of mentorship/tutoring program could be an integral part of a good hackerspace.