Not a game developer but I have a hunch that its for displaying videos within the game. Like a cut scene.

Pretty much just been playing Risk of Rain Returns. Fun game but gets pretty hard.

Dead space. The remake was just as good as the original but with updated graphics and mechanics.

I agree with the cheapness making it a low barrier to choose, but nvidia is Aldo doing the same thing. Full screen ads. Apple on the other hand is just locked/closed off, so no solid choice for a streaming device.