It's really about distances. There are probably more Texans than anything else on these threads, but Texas is an enormous state. Other than that, how far are people going to be willing to drive to buy anything when it's likely they can find anything worth driving to get within 500 miles or less? Most likely within 100 miles. If there were enough members that the average distance between them was 20 miles we would have enough people to make it useful... maybe. Basically we need a hundred people advertising something within driving distance for whatever it is we want. Of course there are people that will drive across the country for a good deal on a well used doughnut, but I'm not one of them.