Good point. A 1200# cake feeder will feed 500hd and a 1500# bale will feed 100hd. used as a supplement. I just did a little quick math and 31% cubes cost roughly 2X what 20% alfalfa costs for the protein. It comes up in every discussion here. Every place is different and a guy needs to remember that. There are several other advantages to feeding the extra roughage that would take longer to figure out.