Also worth considering is the taste difference. Having raised chickens and eaten the eggs, they taste worlds better than store bought. I found that intangible to be worth something in the economical calculation.
I have a flock of chickens and yes this is true, the eggs taste much better.
I assume this translates into increased nutritional quality. A partially free range diet with plenty of grass and insects and some good supplementation helps.
The security of a consistent supply is nice. Eggs are just there. Enough to share most of the year. No need to remember or pick them up at the store which is another (minor) effort that should be taken into account in comparing cost/effort.
The setup is a bit expensive. I find the whole thing entirely worth it though. If you do it right the eggs are night and day different from store eggs.
