I am sorry Apple, I am a huge Apple fan, but maybe realize that 30% is way too much of a commission to ask? Imagine if you go to a grocery store and find out that their credit card company charges the store 30% to accept the card payment. It sounds ridiculous, because it is ridiculous. This fee should be 10% TOPS.
Let's say I go to a grocery store and I find out that someone working on the coffee plant fields in Brazil only gets 0.3% of the money I pay, do you know what I do?
I buy the coffee.