With a good escrow service, bitmit is not needed as much. You could, hypothetically speaking, conduct auctions or sales, on a more popular web based forum, for example. *cough*
https://bitcointalk.org/index.php?board=73.0 *cough*. Although bitmit does make it easier to locate items for sale, and its ability to filter by country is also good.
Auctioning on forum will never be so good as on site like bitmit. I really don't want to see bitmit fall to point of no return, but tosaki is doing his best to do so...