I am struggling with the value of a CRB machine. I get it... It scrubs with counter rotating brushes, sets the nap, etc etc etc. But... For over $3,000???? I can buy NINE DEWALT 15 GALLON STAND UP COMPRESSORS for this much money, a decent used car, you name it. How much better will a CRB prescrub than a 175 rotary with a brush ring? Is it truly that much better, in terms of the visible results? Please help me get my head around this travesty of financial justice that the price of these machines appears to be.