Organic Versus Locavore

There's a tension between organic food and the locavores, a tension I see in this NYTimes article.  There's a scarcity of organic milk, particularly on the East Coast, partly because prices haven't risen high enough, partly because of the inflexibility of supply (takes 3 years for a dairy to convert to organic production), and partly because there's not enough organic grain grown in the East.  The latter is important because grain is important for milk production; cows produce much less milk if they're simply grazing pasture and eating hay.  So there's an imbalance in the food economy, an imbalance which the free market fills by transporting food/grain from distant places, but that's not something which locavores can be happy about.