Phil,
you can do it that way, i did it and cleaned a bunch of rugs like that even w/out the badger, however as you've seen in videos and discussions alot of the soil is still in there....the pit is deff usefull for pee rugs, you won't be able to use just HWE or OP for those. I used my OP to do a china rug and a wool rug once, and didn't like the results.
I agree with the emails, i used to get bothered by his emails, but now i've noticed that some of the emails have marketing tips on them, and obviously he's trying to sell his equip as well, so i just read the part that interests me and than delete it, in a way i do enjoy receiving the emails, even though most of them i don't open(just delete), but it's a top of the mind awareness for me that i know eventually i will have one. He deff has a good customer support and a big following in the rug cleaning industry, so i'm more settled towards the badger than the wolverine.
I'd still personally rather take a RIA course b4 going into this myself, since i've cleaned rugs before...identifying them is another story. Once you can identify just by looking at a rug at clients home, that's when you will be getting $4-$5 bucks to clean them. People that own high dollar rugs, know alot about the rugs and will only take them to places they know that have knowledge about 'em.
Right now i sub-em out to a local rug cleaner, he charges me $1.50 and i charge the custy $3 bucks a ft.