You just (indirectly) reminded me of something. The two leading dog food brands here in AU are Pal and Chum, both of which, incidentally, are owned by the same company. For as long as I've been able to turn on the telly I have seen Pal get tastier at three-monthly intervals and Chum get chumpier at about the same pace. Surely by now Pal is so tasty it burns the dog's tongue and Chum would be so chumpy that the dog would need a Kango hammer to help ingest it. Mind you, I'm not one to doubt their claims lol.