Everyone on the App Store is paying the same fees.
Yes and no. This is one of my issues with the App Store concept in general. Yes, each developer pays the same commission percentage (supposedly), but that isn't the same thing as saying each developer pays the same fees (assuming "fees" is Apple's cost to review apps, run the store, process payments, host files, etc).
Developer A has a game that sells for $5 and takes up 1GB of storage space. Developer B sells a productivity app for $50 that only uses 50MB of space. Obviously these two developers are not paying the same "fees". Hosting and transfering the 1GB app costs way more than the 50MB app. Let's say the game is very popular and the productivity app is very specialized. Bandwidth costs for the game are huge, while almost non-existent for the productivity app in comparison. Many of the other costs are more or less fixed for Apple, yet the game developer pays far less per user/install for everything. I realize this is very similar to how a retail store operates, but that still doesn't strike me as fair.
The fair thing to do would be to bill developers for the services (ie: hosting, app review, bandwidth) they use rather than levying an all-inclusive 30% commission. The commission structure, by design, favors certain types of apps and forces certain developers to essentially subsidize others. And, as a developer, you have no ability to negotiate. If you want access to the platform, you must agree to everything. Period.
And that's the real issue with Apple's App Store. Should Apple be entitled to act as the gatekeeper to their entire platform (after the user has spent thousands of dollars to buy their products)? Who gets to decide how I use the product I bought? It's one thing to operate a store and make decisions about what you carry, what commission you charge, etc. It's another to say "my way or the highway" where the whole platform is concerned. Plenty will say "buy an Android", but that is the lazy answer and completely misses the point.
Will the Apple fans who today defend App Store policy as gospel (rather than some rules a big corporation made up a few years ago to benefit themselves, rules that change regularly to suit their needs...) be singing the same tune when the Mac requires one to buy from the App Store too? Will they continue to defend Apple when their favorite Mac app is killed off because it didn't meet the App Store requirements?
As users we shouldn't be so quick to cede control of what we can and can't do with our devices to a single gatekeeper. If Apple's vision becomes the norm across all major platforms, a handful of massive corporations will each have a kill switch for whatever app or developer offends them. There will be no recourse. Collusion and suppression will be easy. If you let your mind travel down the dystopian highway for a bit, the possibilities become quite chilling.