I have my A&P from my military experience and the local base college. I never used it to make a living but did use it on my own aircraft a fair amount, saved me several thousands of dollars (top overhaul on a twin). I only did a couple projects for others around the airport, actually had to stop hanging out there because people always wanted me to do A&P work. I was flying full time and I had a hard time saying no. Nowadays experimental is the way to go IMO unless your very wealthy.