If you don’t like the 30%, figure out how to modify your business model. Don’t just complain about it. For example, if you make an app that customers enjoy then charge 1.99 or more for the in app purchase vs .99. That way you cover your expenses for development, marketing and everything else, and make more money.
Someone made the point about the trust that the app stores (Apple and Google) with the customers. I am more comfortable buying an app through these markets (you could add Amazon for marketplace transactions), then buying an app from some indie developer in some other country or even in the US. I know that using Apple, Google or Amazon will protect my payment method much more than a small developer using who knows what shopping cart.
Someone made the point about the trust that the app stores (Apple and Google) with the customers. I am more comfortable buying an app through these markets (you could add Amazon for marketplace transactions), then buying an app from some indie developer in some other country or even in the US. I know that using Apple, Google or Amazon will protect my payment method much more than a small developer using who knows what shopping cart.