Doesn't this just entrench walled gardens? That is, your apple/googles of the world have their huge user bases and they are guaranteed access to content at the

Doesn't this just entrench walled gardens? That is, your apple/googles of the world have their huge user bases and they are guaranteed access to content at the same price as everyone else, ergo nobody has any real reason to buy outside of those walled gardens because nobody can offer you anything different or cheaper than google/apple.