Brown Rice Crackers and Salmon/Tomato Salsa

I have been fortune enough to be given a Wondermill through Grain Mill Wagon and absolutely love it.  We have had so much fun grinding my own flour.  So far we have ground black-eyed peas, popcorn and brown rice.  It is easy and  I am wondering if it is cheaper to do it this way then buying these different flours.  You can grind all sorts of whole grains and also beans.  They have a list of what the Wondermill Grain Mill can Grind.