Actually I wasn't mentioning the android devices, or the ones dedicated to be emulation machines, but kind of a "newish" win10 machines where you can install pretty much what ever you want (from PC games to emulators), but come at a high price tag (600€++).

Everyone has to start somewhere, and history has shown that pricing was a major factor for the success of consoles (besides ofc IP, distribution, branding).

You have great examples, like Gameboy VS Gamegear or Playstation VS Sega Saturn.