I think that depends on a couple of factors.
What do you feed now? The cheap stuff or a premium quality kibble?
If you fed the Barf diet, would you feed what you raise yourself, store bought organic or what's on sale at the grocery store?
On the surface, organic does cost more. But when you think of the hormones & antibiotics in most commercial meats it may be cheaper in the long run. They may cause illnesses in your pet that require visits to the vet.
I personally would like to feed more Raw Meaty Bones. But I can't afford that right now. As we start raising more meat birds that will change. Right now I feed my dogs a good quality holistic kibble, RMB (mostly
chicken & fish), veggies, oatmeal, rice, yogurt, molassas & oils rich in Omega-3. They don't get all of that in one meal. Each meal is different. I also bake them biscuits for treats.
Is it more expensive than just kibble? Yes, but they are happy and healthy. I am striving to give them a more natural diet. I hope to one day eliminate the kibble altogether.