Beach Camera via eBay offers the refurbished Sony Ultra-Slim 2.1-Channel Bluetooth Soundbar, model no. HT-CT390, for $109 with free shipping. That's $17 under last week's mention and the lowest total price we've seen in any condition. (It's $89 under the price of a new one today.) It features a wireless subwoofer, Bluetooth, and USB.
A 1-year warranty applies, although it is unclear who backs it.