Not arguing, but what does happen with rendered animals?
Whoa, that is a lot to spend! My new cats had awful diarrhea on canned, I wasn't about to do dry again after Grey (GA), so I gave raw a try. With supplements added, it's about $0.33/day/cat for me now. Getting meat at BOGO really helps with that!
Good luck in your quest for good foods, I was certainly in your shoes and not too long ago.
Suzanne