Printable Coupon $3 Off Iams Multi-Cat Formula

http://www.iamsmulticat.com/iams/en_US/jsp/minis/drtv/IAMS_DRTVLandingPage.jsp

I really don't understand how cats in multiple-cat households would need a special variety of cat food. In reading the description, it sounds like this is really a "general purpose" type cat food -- good for all cats, instead of specialized for overweight cats, kittens, older cats, etc.