ShopDivvy via eBay offers the factory-refurbished Vizio M-Series 60" 4K 2160p LED-Backlit LCD Ultra HD Smart Television, model no. M60-C3, for $639 with free shipping. That's a $40 drop from yesterday's refurb mention and the lowest total price we've seen for this model in any condition. (It's $191 less than the best price for a new unit now.) It features a 3840x2160 (4K) native resolution, full-array LED backlight, 802.11ac wireless, VIZIO Internet Apps Plus (with access to Netflix, Hulu Plus, Pandora, and more), USB, and five HDMI inputs. A 90-day Vizio warranty applies.