Good news!
Probably will get one myself someday if i ever come across the right one. I had a roommate with the non-commercial version once. The first time i borrowed it the bag was about 3/4 or more cemented with fine grain filth; common to the windy agricultural area of Colorado we lived in. Changed the bag and used it happily and often afterwards.
I have the lesser Elite model i bought for almost nothing...and that price seems about right i can say after my experience with it. I will be donating it soon.