I have yet to take a full-on MOOC, but I'd be happy if universities like Yale and Stanford just recorded and uploaded more of their top lecturers' classes. The quality of much of what's on iTunes U is simply phenomenal, and I'm greedy. Obviously the production of video and audio is not cheap, but surely it requires less time, effort and money than producing a course suitable for 28,000 students!

Random recommendation: Paul Freedman's lectures on the early Middle Ages are terrific. http://oyc.yale.edu/history/hist-210