pba,
A sweet young thing came around offering a free demo vacuuming. Coundn't refuse; then the Kirby salesman made the scene. He unfolded his kit, made some disparaging remarks about my present vac, and they were all out of the house within minutes.
The process is this: Free vac offer>Kirby vac salesman>invitation to leave>supervise the exiting process. Spread the word.