Bose via eBay offers the refurbished Bose SoundLink Mini Bluetooth Speaker for $129.95 with free shipping. That's tied with our mention from a month ago as the lowest price we've seen for a new or refurbished unit. (It's also $49 under the best deal we could find for a new one). It features a 7-hour run time and charging cradle.
Note: A 1-year Bose warranty applies.