Saw a Hisense at Costco for $1500. 50" screen, 4K. Picture was noticeably better than the 1080 sets flanking it. Not just a little better, a whole lot better.
Hisense is one of the partners that will use Ultra-D ( glasses-free 3D ) in their TV sets. Folks that saw the display at CES were impressed, but there isn't anywhere close to my location that will have a TV on display.