Most groceries here don’t post prices online, but …..
Boston Metro West - Amazon Fresh eggs from “Whole Foods”, not the cheapest grocery, $4.49/doz grade a large brown. My regular grocery is much cheaper than “Whole Paycheck” for most things.
No taxes on food here, although Amazon Fresh has a delivery charge.
I imagine the huge disparity of prices is that culling due to bird flu must be regional and our chickens must not be infected yet