Why? I live in Paris, and get my food (vegetable, fruits, bread, eggs, peas...) from an AMAP. It's like a coop for about 100 families where we pay the farmer one year in advamce for their whole annual production. It's cheaper than most supermarkets, it's local and organic, it's self sufficient (no competition, we pay the farmer well, according to their actual costs). We only have to organize the distribution weekly (take a few hours per year for every member). I bet the farmer will do better for our organization than any "self sufficient" family.