Want to point out...most of the time you will feed less of a grain free formula so even if, for the most part, the costs per bag is higher you still come out ahead.
Admittedly, we are fortunate enough to have quite a variety of decent kibbles available in our area (even though, for the most part, the prices seem
much higher than those available to our doggy neighbours south of the border!!!).
We happen to feed grain-free (Orijen and Acana)
only because, after going through an exhaustive number of foods with our current boy, these are the ones with which he happened to do best ...
Having said that, I see little or no difference whether the binding agent is (for example) rice or potato. Good kibble is good kibble (although the raw feeders would probably argue that there is no such thing
), so ...
If we could find a less expensive, good quality food that our dog did well with, grain or no, we'd try it in a heartbeat.