Got the query in email and decided to answer in group.
While I am not a big fan of factory farms, which is where a lot of commercial eggs come from, that is not why I pay four times as much for organic eggs.
I am allergic to two of the main groups of cheap antibiotics. Every now and again when I eat the cheaper grocery store eggs I become rather violently ill with an allergic reaction. It is not something that happens every time I eat them, but it is unpleasant enough that I would just as soon avoid it. The easiest way to avoid it is to use organic eggs. If I am making something that calls for an egg or two in a dish that makes 8 or ten servings, or one that calls for just whites, I can usually get away with the cheaper eggs. If I want an egg for breakfast, or I am making a yolk rich dish, the $4 a dozen ones are more than worth the extra money for me.
Buying locally is a big plus, the far superior quality of the eggs is a big plus, supporting happy chickens is a plus, but not making me ill is my primary reason for buying the much more expensive organic eggs.
NightMist