My cats absolutely hate 4Health. They *will* eat it when they're hungry, but they don't like it. What's another food in this price range that may be more palatable?
Chicken Soup for the Cat Lover's Soul is good, and around the same price if you can find it. Diamond Naturals is also pretty good in the ingredients department, but for some reason it just doesn't seem to be well tolerated among the cats I know. It might be worth a try, though. Or mix? I mix 4-5 different brands so my cats don't get too picky.
Yeah, it's even cheaper than Purina ONE ($21.99 for 16 pounds at Wal-Mart), but actually has halfway decent ingredients.
Diamond Naturals Active Cat is also sold at TSC (usually very near the 4Health), and is the same price. Maybe grab a small bag of that and see if your cats like it, and if they do, mix it with the 4Health and let it sit long enough so it all smells the same. That might trick them into eating the 4Health along with it.