I get mine at a local family owned petstore but they only have a couple of different flavors. I also pick it up at Petsmart because they have a better selection and the kitties could use some variety. They also get Nutro canned foods once a week just to mix it up a bit.
I can get the dried (only in a couple of varieties at the local feed and grain store here) as well as at Petco (we don't have PetSmart yet) but they tend to run more money. My cats though love the pouches and the cans but hate the dried.