I used to buy Eggland's best eggs at Costco. When we decided to go local/organic, we started buying our eggs fresh from a local farm with real free ranging hens.
I immediately found the taste to be roughly a million times better than any grocery store egg I'd ever had. It was a no brainer for me that I'd keep buying them.
We give a lot of our scrap food to the dogs...Egg shells were something they would take, crunch up and spit back out and give us the evil eye as though we'd tricked them. Considering many of them will eat poo if given the chance, it's odd to find something they won't eat. Their palate has never been one I would describe as "discriminating" LOL
Since we've been buying the fresh eggs from happy hens, the dogs will jump over each other to get a hold of one of the shells. It's like crack. They know the sound of the egg carton hitting the counter and it's like a thundering herd of paws beating a path to the kitchen.
Weird? Or maybe not. I guess the dogs know the difference between good food and mass produced food too.