[threeseed]

And how do you reconcile online stores for software businesses e.g. Atlassian, Github, Shopify ?

I can't install addons without going through their "app store".

[thewebcount]

Forget about app stores. You probably can't get your branded products into Trader Joe's, but nobody's calling them a monopoly.

[molmalo]

To be fair, Trader Joe's or any other store does not require me to go through them, without any other alternative, every time I want to modify or use in new ways my stuff after I bought it.