Agreed. The trick will be to find a buyer, as it's a gem of a collectable, but not a particularly fun game imo.
Possibly weird idea but, if I had one to sell, I'd post it on pinball forums in addition to this one. It was one of the first commercial offerings Pat Lawlor ever worked on. If pinball had a Mt. Rushmore, his face would probably be on it.
Thats cool, I didn't realize Pat worked on Robby. As a kid, the local pizza place had one and I dumped many quarters into it... still the only time I have ever seen one out in the wild.