The finale reason we've decided against becoming organic is largely a belief that the organic movement has become too anti: anti-GMO, anti-pesticides, anti-science. There is more of an emphasis on what is "natural" instead of what is "sustainable." Unfortunately, organic in it's current form is not sustainable, requiring more land to produce the same amount of conventionally grown crops (although some crops perform better than others).
We are devoted to trying to be sustainable, and the truth is organic is not. For our food production system to move towards sustainability we need a mixture of the organic and conventional methods. Wiser uses of technologies like GMOs and pesticides, not the outright rejection of them.