Yes - when your argument for insanely high margins (look at net profit and compare to market average) is that you are locking down the store for the benefit of

Yes - when your argument for insanely high margins (look at net profit and compare to market average) is that you are locking down the store for the benefit of the user and not to abuse your monopolistic position. Either they are abusing market position to prevent competition on the store (eg. linking to custom payment providers) or they are doing it to guarantee customer experience (Apple fanboys are really big on this line) - in which case they are liable and it's priced in.