I cracked open three eggs this morning to make an omelet and literally exclaimed when I saw the difference.
The yolk on the right was the last from my dozen of organic, cage-free, local eggs supplied by a large company in our area. Obviously, they do their best to produce fresh eggs from hens who are given as good a life as large production allows.
The two eggs on the left are from pastured hens who live on another organic farm out to the west of us, also local but very small, Clark Summit Farm in Tomales, CA. Their hens run around all day in the pasture eating whatever yummies they find - bugs, worms and grass - and are offered organic feed and crushed oyster shells to strengthen the eggs' shells. They are sheltered at night in moveable coops for their safety. They are not kept under lights to increase their laying but are allowed to rest during the dark months.
All this produces lovely orange yolks but, color aside, it just feels better to me to know that my eggs come from chickens who live a good chicken life while laying me some lovely eggs. To me, it's worth the $4 trip across the bridge and the higher price to know the care that has gone into producing these delicious eggs.