After 10 years of professional experience on my CV and a pretty good connection list I don't miss a degree. Much like you I left school to start working, much because I felt I was wasting time there. Also like you I felt that I learned a lot more at work than at school so it was a good decision. I still think that 3 to 5 years is too much time just to get a piece of paper. It's good to have one but I think the best choice is to take it after work as a complement to your professional experience.