Muryful - for a gazillion years now commercial & many backyard chicken flocks have been fed feeds that contain a heck of a lot more than corn. Like fish meal, meat meal, poultry meal, bone meal, yadayadayada.
You've been sadly mistaken if all these years you thought eggs - & chickens - were "vegetarian".
I don't buy Eggland's simply because I don't believe they're any better than the free-range or local farm-raised eggs I get around here. And I can't believe part of their exhorbitant price isn't because they feel the need to put that stupid little red rubber-stamped "EB" on every single egg. Good grief.
As far as orange yolks DQ - don't automatically write them off. While Eggland's are probably produced by the feeding of such natural foodstuffs as marigold petals (remember good old Frank Perdue & his yellow chickens? Marigold petals are part of their feeding program for just that reason), a tight white, & high, deep orange yolk is normally the sign of a chicken that's been allowed to eat what chickens normally eat when "out on the range".
When I raised chickens, those deep orange yolks - the product of chickens grazing in the garden along with being fed an abundance of chicken scraps - were a sign of truly superior eggs.
If all you're used to are pale yellow yolks though, I can see why the dark color might throw you.
I have never noticed a difference between Eggland eggs and just plain ole' eggs. I do notice that the yolks are very , very yellow bordering on orange. I don't like that. Looks like dye to me. For the price they're asking they have to be a lot better than they are.
Same as a yellow skinned chicken compared to a white skinned chicken. Sometimes it just doesn't look right because we are not used to it.
Clover will make for some deeper colored yolks, too.
Sorry, I can barely read you posts with all the formatting, so I had to put your post into the "usual" formatting to make sure I was reading it right.
Farm fresh eggs do have orange yolks. People who eat only supermarket eggs have no idea what fresh eggs look like, nor how they taste. It is most certainly worth it.