Special Kitty is fine for cats, I have 12 of them that are doing lovely on it, my civies are healthy and sleek, Maxwell is still in remission and Musette is gaining weight and getting silky as her coat comes back in. Special Kitty is also grain free. The other low end foods cost wise is going to be Friskies (which has grain) or 9-lives (grain free), then slghtly up from those would be Fancy Feast, which has a pretty high liver content, and only 2 of mine liked it. Then on the higher priced and a littlebetter quality would be Evo, Wellness etc. Which even it I wanted to I couldn't feed here unless I ordered it on line as the nearest Petsmart or Petco is 250 miles away. The better brands seem to be only sold in those type places or specialty pet stores which there are none of around me at least. And personally, with 12 cats, I'm not spending $1+ a can for catfood, but that is just me and my herd.
Mel, Maxwell, Musette & The Fur Gang