The only justification I've heard, and it's a very weak one, is that Apple provides the customers. That is, if Apple weren't around to run the App Store, then c

The only justification I've heard, and it's a very weak one, is that Apple provides the customers. That is, if Apple weren't around to run the App Store, then customers would be too stupid to find anything interesting to read, listen to or watch. Surely, they can justify some amount for payment processing overhead, but requiring all apps to use Apple's payment processing terms is beyond ridiculous.