It is good to hear that there are still Rainbow dealers out there. The one we have locally is a Hit-and-run dealer. They have an office, but after they sell you in the home, try, just try to find someone around to buy consumables or get service.
It was never like this when Mr. Houser was alive.
In any case, good luck with selling Rainbows. You may have some customers on this site if the bug bites and you are willing to ship.