I saw this ad today. Someone near Detroit, MI is selling a new BT3100 sealed in box for $259. It's more than I paid new, but there can't be too many new ones left. This is not mine, but it might be a BT3 member's listing though since the ad mentions this site.
http://detroit.craigslist.org/tls/793683689.html
http://detroit.craigslist.org/tls/793683689.html