SN10384 sold for $1,200 on eBay, Dec 9th, 2004.
Clearly from some of the pictures, this machine needs some work. The plug is frayed, the Thrust button is missing, and there is no key for the back. However, it was one by an avid Computer Space collector, I understand he has about hald a dozen machines! So I am certain this unit will be repaired and back up to playable condition in no time. It sounds like the seller owned this unit since he was a child, so I doubt there are very many plays on it.