My wife gets a migraine within about 5 minutes of having any non-organic dairy products. We don't know if it's growth hormones, anti-biotics or what, but it is 100% reproducible. Same thing with non-organic corn, onions, green beans and others. So maybe not a net plus for most of us, but a huge difference for her.
We usually discover something contains dairy via the migraine. But she can have organic dairy all day long. That's essentially blind, right? She's not willing to purposely inflict herself with a migraine to test though, and I don't blame her.
"They did not find strong evidence that organic foods are more nutritious or carry fewer health risks than conventional alternatives, though consumption of organic foods can reduce the risk of pesticide exposure."
Limiting pesticide exposure seems to be the exact reason to buy organic to me.