Joel Salatin goes beyond organic in his farming practices. I’ve read articles about him in the Mother Earth News. I’ve seen him appear in documentaries such as Food Inc. I recently viewed this recording of a talk he gave at TED. I found it inspiring. It shows that he is not only good at farming, he is also good at marketing his product.
The cheapest eggs available may not be the healthiest. Do you really want to buy eggs from factory farms that stack chicken manure 8 feet tall (source)?
Seek out farm fresh eggs from a farmer’s market or road side stand. They may cost more per dozen but they are an excellent value for the money.