For years I have heard the mantra from the BJ auction TV coverage that (and I paraphrase) "you just need two guys that want the same car" to drive the price up. It is now apparent that you just need one guy that wants the car and a house shill, to drive the car up.
On another note, if a car had a low reserve set(under value), could the house have their shill bid it up to the reserve and then drop the gavel?