Let's be fair - I don't think we're talking about simply swapping lists when you zoom out. At a minimum, any value prop would have to match the existing major app stores such as verifying binary sources, rejecting malicious apps, and the like.
I think the main question I see is - do multiple stores benefit the user?
I'm not sure of that answer but I think we can agree that multiple stores do NOT help the default app store, which in turn could be beneficial to the consumer (multiple stores that have to compete on pricing w/ deals, self publishers offering a cheaper price directly, etc. - think more like grocery stores selling the same stuff vs farmers market vs direct from farm).
I'm no economist but I think we could also agree that having at least a few options is generally A Good Thing.
edit: regardless, even in a world with multiple stores the point re: attack surface is a good one and one of your other comments regarding what users actually value like safety is an important one, which as a business are the things you need to weigh on to make a profit
I disagree that the main question is: "do multiple stores benefit the user?". The main question is: "Should the user have the choice in their stores?". Apple believes that their users should not have that choice, and Google used that to drive adoption with Android by making it more open. AS Google gained the market share and power, they locked down Android more and more to gain those monopoly-level profits. Based on data that was released as part of Oracle v. Google, it looks like they have over 40% profit margins. Plus notice how Google just cut their fee in half (30% to 15%). That means they were rolling in cash.
There are many alternative stores available for Android. In my experience this only leads to:
1. Less trusted software. Can I trust Russian Yandex app store? Can I trust Amazon app store?
2. Focus on upselling their own / affiliated apps.
3. No actual increase in choice. Some devices just come preinstalled with alternative stores for no other reason than their own monetary benefit.
4. A theoretical benefit that "I have choice" and if someone bans something I _might_ be able to install it from a different store. Of course oppressive regimes don't just ban apps, they often restrict internet in more severe ways.
I think the main question I see is - do multiple stores benefit the user?
I'm not sure of that answer but I think we can agree that multiple stores do NOT help the default app store, which in turn could be beneficial to the consumer (multiple stores that have to compete on pricing w/ deals, self publishers offering a cheaper price directly, etc. - think more like grocery stores selling the same stuff vs farmers market vs direct from farm).
I'm no economist but I think we could also agree that having at least a few options is generally A Good Thing.
edit: regardless, even in a world with multiple stores the point re: attack surface is a good one and one of your other comments regarding what users actually value like safety is an important one, which as a business are the things you need to weigh on to make a profit