BuyDig via eBay offers the Vizio SmartCast E-Series 60" 4K 2160p 120Hz LED-Backlit LCD Ultra HD Smart Home Theater Display, model no. E60U-D3, for an in-cart price of $699 with free shipping. That's a buck under our mention from three weeks ago and the lowest outright price we've seen. (It's the best deal now by $53, outside of the mention below.) It features a native resolution of 3840x2160 (4k 2160p), full-array LED backlight, 120Hz refresh rate, 802.11ac wireless, USB, and four HDMI inputs.
A close price: Best Buy has it for $699.99 with free shipping.