I paid 550 for mine, fully working a year ago. Great em, definitely under rated. Slightly more rare to find than space mission. If it’s all there, working, ready to go I’d be happy spending 600. Bargain at 500 level. Bottom line if you wanna keep it forever and enjoy the heck out of it 650 is where I’d draw the line. It really is a great game, almost the end for Williams em production.