TigerDirect via Walmart offers the 5.1-lb. ASUS K550LA Intel Haswell Core i7 1.8GHz 15.6" Touchscreen Laptop in Silver, model no. K550LA-TS71T, for $599.99 with free shipping. That's $100 under our mention from last week, the lowest total price we could find today by $80, and one of the least expensive 16" Core i7 touchscreen laptops we've seen. Features include an Intel Core i7-4500U 1.8GHz Haswell dual-core processor, 15.6" 1366x768 touchscreen LCD, 6GB RAM, 750GB hard drive, 802.11n wireless, webcam, media card reader, USB 3.0, 4-cell battery, and Windows 8.1 64-bit.