I enjoy these little micro consoles. I own an ouya and now a fire tv. There are some quality games to be played that are affordable. There is no where else where you can play more high quality old school games as well.
Amazon.com are the #1 retailer in the world. Since launch the fire TV has remained a #1 best seller. The controller has sold old. There is also rumors of google creating another box with gaming as an option.
Small box gaming at a fraction of the cost (both hardware and software) maybe appealing to the mass consumer vs spending $400-$500 plus $60 per title.