I put the girls on THK since we have a teeny tiny frige and not much space for our food, much less their rmbs and such. I am still going to use raw toppers though.
Anyway, I figured out that once you add water, the cost of even the most expensive food, Embark, is 1.91 a pound. Down to their most economical food, Keen, is 1.30 a pound. Previously I was feeding petguard dry food and that comes to 1.91 a pound, so, in the end, it's a wash! And water's free, right :) This makes me feel a lot better (budget-wise) that it is very cost effective for us. yay! because the girls are doing great on it and love it.
I used thk for our trip across country and then when we got moved into our new house, switched back to raw. Darby was not very happy that she had to chew rmbs again.
Anyway, the girls lucked out with our tiny frige, they get thk again :)