Adorama via eBay offers the factory-refurbished 5.1-lb. Asus Intel Broadwell Core i7 2.4GHz 15.6" Touchscreen Laptop, model no. Q551LN-BBI706, for $599.99 with free shipping. That's the lowest total price we could find by $100. Designed for use as a notebook or a tablet, it features an Intel Core i7-4510U 2GHz Haswell dual-core processor, 15.6" 1920x1080 touchscreen LED-backlit LCD, 8GB RAM, 1TB hard drive, NVIDIA GT 840M 2GB graphics, DVD burner, 802.11ac wireless, Bluetooth 4.0, media card reader, HDMI, 3-cell battery, and Windows 8.1.