Groupon offers the factory-refurbished ASUS Transformer Book T100TA 10.1" 32GB Windows 8.1 Tablet with Keyboard Dock, model no. T100TA-B1-GR, for $199.99. Coupon code "SALE" cuts that to $179.99 with free shipping. That's $20 under our mention from two days ago and within a buck of the lowest total price we've seen. (It's also the best price we've seen without rebate hassles, and currently $150 under a new one.) It features an Intel Atom Z3740 1.86GHz quad-core processor, 10.1" 1366x768 IPS multi-touch LED-backlit LCD, 2GB RAM, 32GB internal flash storage, 1.2-megapixel front-facing camera, Bluetooth 4.0, 802.11n wireless, microSD card slot, GPS, and Windows 8.1. A 90-day ASUS warranty applies. Deal ends November 13.