I also still play in leagues as well. One big difference in the leagues I play in are that we don't have many "professional" referees. The leagues have players ref the games instead. It's not to save money, but really to have players learn how hard it is to ref so they will WHINE less.
Personally, I think it's funny that I'm considered the "professional" ref in the leagues I play in. I consider myself just your regular "average Joe" ref. However, I guess in sheer numbers of games worked, I am a professional ref.