I partly agree with you - but then you as a consumer should also be willing to expect variable pricing in such cases. If I as a developer offer a subscription for $10, and Apple demands $3 from it, while other payment providers only want $1 or $2 commissions, I should be able to tell you (the consumer) this information transparently and should be able to give you the options to choose between these different payment service providers. (Note that while you, as a paying customer, are an important part of the ecosystem, we developers too add value to the platform by developing apps that people like you want to use. That Apple seeks to exploit both you and me, should piss you off too. After all, one of us has to absorb the higher cost of Apple's services, and that often ends up being you, the consumer.)