Jumbo white celadons?

Does anyone keep them for eggs/meat? I imagine they're on the rare side, but I'm looking at getting a few to keep on my balcony to keep me in eggs. I'd like to avoid having to breed to get them if I can!

30% protein gamebird crumbles are ~$30/50lbs here, and chicken eggs are ~$3/dz. I know I'm not likely to save, but I feel having fresh & quality eggs right outside my door outweighs the extra cost and effort.