I say emporiums because the old-fashioned little health food store selling brown rice and often ridiculously overpriced vitamin supplements are of little or no interest to the conscious shopper. It has taken suppliers and retailers many, many years to learn, but finally they've got it-you cannot charge an arm and a leg for organic perishables they just won't sell. Add to this equation the growing number of farmers jumping on the organic bandwagon and you have ample supply to meet growing demand. In Europe, fresh organic produce is available in nearly all the large supermarket chains, and I think this is a trend you'll see increasing here over the next few years. Farmer's markets offer a good selection of comestibles, but they vary widely,and seldom carry organic produce.
Freshness can also be a problem.
They are always worth investigation, however, so check them out on your travels.