If you have a membership to Sam's Club, they have 6lb bags of boneless skinless chicken thighs in their freezer section.. Don't remember the exact cost, but they're cheaper than the ones in the fresh cooler. I have both Sam's & Costco, but Costco doesn't carry these, only Sam's.
Where in Colorado are you??? I'm Denver and have 3 kittens I'm going to need to start making food for. Lost my senior kitty at the end of April (she was 23) and I'd been feeding her Nature's Instinct and started the kittens on that, but they've changed their formula and packaging and the "CAT" version is now only available in tiny 20 oz bags and the new "DOG only" version is no longer nutritionally complete for cats.. No way I can afford those tiny bags, my babies are growing so fast and eating so much I'd go thru 1 a day (and they're anywhere from $12 to $16 each depending on the protein.).