Stargate is Gottlieb best system 3 game by a country mile.
We don't see to many of them here in the U.K. but at this years U.K. Pinball Show there were two machines next to each other and both working. Last years show there was a single Stargate but spent most of the time broke down awaiting repair. Its a great game to play and a awesome theme but needs strong flippers to make the difficult ramp shots. Since playing it at the show its one of the machines on my wish list.
Top game, go for it , you won't be disappointed.
Darren.