Hmm, I don't think the app store is "for" app makers at all. It's for end users exclusively - the paying customers. That app makers are required to keep a fully stocked app store is an implementation detail.
You kind of just said "no you're wrong, its not for developers" and didn't really follow that up with any sort of supporting evidence, which is usually how these kind of exchanges go. If Apple designed the app store for the end user and 0% for the app makers than we would simply see the most popular app at the top and everything would be free. But we don't have it that way, why? Because if we had it that way developers wouldnt develop apps, which is why features in the app store, like actually having people pay, are built for developers.