I am trying to use the pinside.com search feature to see where there is any Orbiter 1 machine [ http://pinside.com/pinball/archive/?s=1&keyword=orbiter ]. I know there is supposed to be one at PAPA [ http://pinside.com/pinball/map/where-to-play/papa-world-headquarters-2512-carnegie-pa-united-states ].
Here is a video of the machine being played at PAPA:
I can't think of any other machine I'd rather find to play.