Thanks to all for the Kirby info. Its interesting how the different nozzle and brush designs have evolved over time.
Terry, yes I had a pre-owned/loved Kirby, identical to Mikes, the Tradition. I had fun with it, but never really grew to like it. It seemed cumbersome trying to maneuever it in close quarters and it gave quite an aerobic workout. Not a bad thing! Ultimately, I sold it. I must admit this blasphemous statement, but I really love my Hoover Windtunnel Widepath. It's great. But the plastic housing pales in comparision to the Kirby in all its chrome regalia.
Our friend Beth, she's is just a little thing, barely 100 lbs., has one of the new Kirby Ultimate self-propelled machines and she loves it. The vacuum is nearly the same size as she is! I've played with it a bit and it is quite cool. So with all this Kirby excitement, the bug has bit and I'm on the hunt. In the junk, thrift and goodwill/salvation stores, I see Kirbys from time to time, so I'll be looking.