The almond market was built up to what it is today by selling the nuts as being a health-food, and they still are being sold as such all over the world. For this reason alone, I don't think many growers will be hot to trot to switch to genetically modified varieties that will turn off a large segment of the market to almonds. Almonds sell for a lot more than they would otherwise sell for because of the perception that has been built through many years of marketing almonds as a health food, and I just don't think growers are going to risk losing the market momentum they've built.