Microsoft Store offers the Sony VAIO Tap 21 Intel Core i5 1.6GHz All-in-One 21.5" Touchscreen Desktop PC, model no. SVT21213CYB, for $899 with free shipping. That's $100 off and tied with last month's mention as the lowest total price we could find. It features an Intel Haswell Core i5-4200U 1.6GHz quad-core processor, 21.5" 1920x1080 touchscreen LCD, 4GB RAM, 500GB hybrid hard drive, Gigabit Ethernet, 802.11n wireless, Bluetooth 4.0, webcam, media card reader, and Windows 8 64-bit.