I've been considering getting a masters. The thing holding me back, is that I worked full time while getting my bachelors and it was a grueling 9 years. I'm not sure I want to go through that again. Though I do dream of quitting my job and going back to school full time. I think that would be fun. I have the money to do it, but the opportunity cost is just too high.
Though I do spend a couple of hours most weekday mornings learning stuff I want to learn. I get up about 5 spend a couple of hours studying and then head into work. The nice thing about studying on my own, is that I can take a break if I need to. Like right now work is real stressful, so I decided to take a week off studying.