4K TVs are already getting that cheap. There will be several ~50" sets for $500 or less on Black Friday. Xbox One and PS4 only support HDMI 1.4, so they can output at 4K, 30FPS, so they'd be fine for Netflix or YouTube, etc. Even if they added true 4K support and could output *some* games at (consistent) 4K 30FPS, I'm sure lots of people would be happy.