As one of its daily deals, CowBoom again offers the used Insignia 32GB 8" Windows Tablet, model no. NS-15MS0832, for $29.99 with free shipping. That's $15 under our used mention from a month ago and the lowest total price we've seen. (It's also $67 under the best current price for a new unit.) It features an Intel Atom 8482 1.3GHz processor, 8" 1280x800 IPS LED touch display, 1GB RAM, 32GB flash storage, 802.11n wireless, Bluetooth 4.0, 2-megapixel front- and rear-facing cameras, microSD slot, USB, HDMI output, and Windows 8.1. Deal ends today.

Note that no warranty information is provided; this pre-owned unit may have minor scratches and/or be missing accessories.