Organic milk has other ancillary benefits you won't find in "plain" milk: The land and animals are treated much better. If you have ever seen a "normal" dairy farm, and watch the amount of antibiotics used to prevent the cow's udders from become infected, it becomes clear that life (for a cow at least) on a organic dairy farm is much a much nicer existence (and thus one I personally want to encourage). Also - the grains that are fed to organic dairy cows must be organic, which means more acres of organic grain production. Many organic dairy farms also do not milk cows that are in the later stages of pregnancy, which reduces the amount of estrogen in the milk fat (high levels of estrogen in the diet are linked to cancer).