This is more of a residential community than a shopping mall.
This site is firstly a community of like-minded people who share ideas, help sovce each others problems, tell jokes, and various other aspects of a virtual life.
The "for sale" boards exist mainly for members to sell to each other. It's kinda like buying a car from a friendas opposed to buying one from a car lot run by strangers. While you might get a sale, be aware that many people here know who they are buying from by previous interactions here.
IOW, ya gotta date the girl before you can expect to get to second base. If you want cheap, fast action, there's always ebay.