Because Walmart owns the physical space but apple doesn’t own the physical device.... Apple has set up shop on the real-estate (the device) that it sold over to the user. I’ve seen this argument plenty of times and it rings hollow to me every time.
So, if they started renting the phone to you and everybody else, having a single Apple-controlled App Store would be acceptable?
(That may not even be 100% hypothetical. They have lots of money, so can afford getting delayed payment for phones. They might even be able to become a global phone company, too, and rent you a phone and a network subscription)
This is how apps on phones worked for a really long time, each carrier ran its own App Store and in many cases you were renting the phone from them or getting it for free with your plan. Mobile carriers have begun merging into megacarriers over the last decade, but for a while you had a choice of at least 4 real carriers in the US.
Plus, you could unlock your phone (in some cases) and move to another carrier, which theoretically meant a different store! True freedom.
Of course actually using these phones and putting apps on them was MISERABLE, mostly because they were symbian and/or j2me apps
