I give mine away for free but I would like to say you could ask more per dozen. your eggs are higher quality than the store bought eggs. Quality over quantity is how I live.
I sell mine for $4.00 per dozen to people who appreciate organic, "authentic", free ranged eggs. These are folks who grow their own veggies organically and are interested in the quality and healthfulness of their food, not in finding what's cheapest. You need to find a different market. Offer it and they will come.