It’s a  great little article in the New York Times, a comparison of heirlooms versus hybrids, and why it’s not that 19th century special that some  little old lady used to grow in the Poconos that’s good for you, but perhaps more the Atkinson tomato that was grown by Auburn professors just a few years ago in a climate very similar to that of Georgia. Heirlooms are best, this article suggests, when adapted to the microclimate in which you garden.