I don't want to be the obnoxious person saying "Stallman told you so", but ... well ... we should all know by now what happens when companies sell you devices that are under their control and not yours.
These devices are not designed to respect your wishes or freedoms. They are not designed to empower you. They are designed to keep you within a strictly limited set of options. You do not really "own" it and it does not owe you its allegiance; it acts in the best interests of its manufacturer, not you.
While Amazon and Google Duke it out, they both want to gain market share, so the only way you can see everything is to go to someone else.
Know anyone who wants a used Chromecast or FireTv? :)