Eawakening via eBay offers this 23-Foot USB Borescope Snake Camera for $9.59 with free shipping. (Select the 7M version to see this price.) That's tied with our mention from three weeks ago and the lowest total price we could find by $3, excluding other eBay vendors. It features 640x480 resolution and records at 30 fps.
Note: This item is supported on Windows only and may take two to six weeks to be delivered.