LOL, Greg once posted Design and manufacturing, was like a hairdresser, that could do only 3 hair-do's. D&M machines were big beefy and heavy as hell. True to form the ones labeled Kenmore for sears, Seemed to have a few more cycles and convenience features, both the roto rack, and 2 square rack, machines of the 1970's, were well made and no center spray tower, you could fit lots of dishes in them. They had a pulverizer, for larger waste, but the square rack machines seemed to leave more "yiblets" on top of cups and glasses. mechanically they were all very similar. More money= more bells and whistles. We had a catalogue store so we always got one on clearance or one with free shipping. You did get a lot of bang for your buck. alr2903