RefurbForLess via eBay offers the refurbished 7-lb. HP Envy m7-k211dx Intel Broadwell Core i7 2.4GHz 17.3" 1080p Touchscreen Laptop in Natural Silver, model no. J9K05UA#ABA, for $529.99 with free shipping. That's $70 under our January mention of a refurb and the best price we've seen. (It's a current low for a refurb by $20.) Features include an Intel Core i7-5500U 2.4GHz Broadwell dual-core processor, 17.3" 1920x1080 (1080p) touchscreen LCD, 12GB RAM, 1TB hard drive, Nvidia GeForce 840M 2GB graphics, DVD burner, 802.11n wireless, Gigabit Ethernet, Bluetooth, 4-cell battery, and Windows 10 Professional.
A 90-day warranty applies, although it's not clear who backs it.