Also, as some other comment has pointed out, the % Apple takes is from their role as one manager. Ask an actor or sports ball player what happens if they don't pay their manager the % owed.

I just haven't figured out why software devs think they are so special that they don't have to pay to play. I have seen no honest answers to this other than Apple === BAD. Devs are pretty much "all monies are belong to us"