At the local vegetable stand, I asked why the tomatoes are displayed bottoms up. "We've always done it that way." I suspect it's to prevent their rolling off the counter but it slows my shopping. Last year I found a one-of-a-kind tomato; spent two days photographing it; stored it for six weeks; then photographed it to show age. It was a great model. Now each tomato has to be turned over. I grew up in the country, I'm familiar with the slow food concept--I'm more into the slow shopping movement.