I have always supplemented my dogs with raw meats and the like, and wouldn't really mind switching to a raw except for- how do you figure out how much to feed your dog? I play enough of a guessing game with dry kibble, so I think it would be rather scary to do so with foods that will very directly affect the dog's nutritional intake.

Also, it seems like everyone else here just has a couple dogs... with 5 dogs I wonder if it really becomes any cheaper.

That's just my two cents.