From the pictures, the machine looks to be in exceptional and original condition.
From the des-cription, it has been in the family for a long time.

This machine traditionally changes hands cheaply, BUT, I've not seen a CP in this condition for many years. I hope it finds a new home in a collection. Nice game.

I'll take a stab at $1600, but I won't be surprised if it goes for $1100 or thereabouts.