Tough one... they made a lot, but there's a reason - they're popular, and are somewhat premium today... I'd say a very nice condition game could fetch about a grand, a little more/less either side, but maybe more in CA. Good playfields are somewhat hard to find as the dark blue color took a beating and shows wear more than most colors. Middle of the road game - $500 give or take. Offer 200 and see what happens!
Don O in MD