This is a strawman argument. I don't think anyone is arguing that the services provided by Apple are worthless, including Epic. The question is whether they are allowing competition to exist on the app store so that a more accurate equilibrium price can arrive via market means.
In Epic's case, we're talking about hundreds of millions of dollars a quarter! The services you're talking about are not worth that much. In fact, I am willing to bet the $99 charged by Apple for the developer access to all developers is more than sufficient to cover all.
But if you want, we can be more generous. Look at development tools sold by Microsoft or pro tools sold by Adobe or even Apple itself. We're talking about thousands of dollars at most. Let's boost that number by a factor of 10 (!!), to include whatever else you may want to add, and we're still only talking about tens of thousands of dollars vs hundreds of million.
And let's not forget the tremendous benefits that Apple is receiving from having killer apps on the store. In this case, that's hundreds of millions a quarter in direct revenue. And then there are indirect benefits that boost sales and support the success of the iOS platform.
Epic is stating those services are worthless by requesting to pay nothing (except the $99/yr, I guess) and set up their own store with the same access & entitlements to iPhone hardware as the App Store.
I take it your position is that Epic is welcome to millions of revenue utilizing Apple's IP and technologies for $100/yr?
The question is: Are those other things considered a monopoly? It's my opinion Apple and the App Store are and therefore are subject to regulation.
The Court's interpretation of the Sherman Antitrust Act is that Apple and the App Store would not rise to the level of monopolies. Your opinion and my opinion don't really matter (unless you're a judge...I'm not.) I guess we'll need to see what happens.
How is 30% for all games fair compared to $1000/year+ in developer costs? You do realize that Epic alone is paying hundreds of millions of dollars a quarter right? If Apple offered them to pay $1000/year+ instead, they'll take it in a heartbeat. And you do realize that companies like Uber are not paying anything even though they're also offering in-app payment and making billions right?
Moreover, in another thread, I've analyzed the costs of providing the cloud services that Apple provides. And it is minuscule compared to the revenue they're generating. (For comparison, see entire platforms supported by ads only.) I'm willing to bet the $99 that Apple already charges is sufficient to cover all of these costs.
Again, 30% matters when it's a big revenue generator. I don't know app revenues per year, but for say a $1k cert, anybody making less than $3.3k and paying 30% comes out ahead if it was a hypothetical $1k.
I totally realize that Epic, and MS, and Spotify would take advantage in a heartbeat. To the detriment of the little guy. There would be no more free apps since everybody needs to recoup their $1000 (to your point, assuming its a "cheap" $1k and not $10k, or $100k, or $1m) + $100 for each test flight user, + $10k for each technology used (metal, whatever), etc. Apple is incurring those costs to allow the platform to flourish. Don't want to use them, roll your own - don't complain when they crash, though.
The indie developer would die off; they need to be subsidized by the giants making a ton of revenue. Apple does not publish (to my knowledge) the profit margin of the App store, just the revenue (22% as of June 2020 results).
So, as part of your calculation, you need to include the development cost of iOS 14, MacOS, iPad OS, TV OS, watchOS, and whatever else is in development (iPhone X, iPad X, glassOS, Car, whatever), not just the "cloud services", since there is only 1 P&L for the company. Apple's gross profit margin is 38% - the app store cut is 30%. Assuming the cost to maintain it is ZERO and all 30% is profit (100% of 30%), that is still 8 points below their overall gross profit margin. Their net margin as a company is 23%. An enviable position, for sure.
If developer's feel the cost is too steep, they are welcome to leave, or sue, or tweet, or otherwise voice their displeasure by taking out a full page ad in the San Jose Mercury.
But they can't break the licensing terms of their developer agreement without losing their cert and getting booted.