I am in a co-op so the raw is less expensive for me to feed than if I had to get it on my own. I spend about $150 per month to feed three GSD's. I don't know how that compares to kibble(I haven't bought kibble in 7 yrs)
I think the convenience of feeding kibble is the real reason people won't commit to feeding raw. And you need a dedicated freezer/fridge if you have a few dogs to feed, because buying in bulk helps reduce the cost.