I bought an x5 yesterday (tuesday) for the first time. And might I say have been impressed with its cleaning ability and the quietness of the vacuum. Really nice! And yes its for sale on ebay.
I recently acquired a Windsor Versamatic at a garage sale for $2!! The suction half of the machine was fine, although the power nozzle needed some work as it was clogged up and the brush roll had seized. Once I got it running, I quickly fell it love with it. I knew Sebo made good vacuums, but I was really blown away by it.