> Imagine a world with no cash. Now the payment card companies decide they want 30% of all transactions. You think that would be reasonable?

I don't really care for this attempt at analogy. The cut that Apple or Google takes is more similar to the price manufacturers pay for shelf space in a retail store. I'm guessing that in many instances these kinds of charges amount to far more than the 2-3% a card processor takes. And frankly, 2-3% is already ridiculous.