Picked up the Road Kings that was on eBay the other week. Guy lived within walking distance so no brainer really. he had a figure of £300 in mind and told me he had 8 people turn that down , one person even offered £100. the cpu is worth that! took me 10 minutes to get the game to boot up and apart from some stuck assemblies and missing display is working. And Im technically useless. reasonable cab and playfield for a 29 year old game. a bit more tinkering and a new display and should be Ok for the Party. Get a feeling that most newbies want Dot Matrix games but not for dot matrix prices and are just waiting that Addams to come up for £500 . I think those days are gone but as the RK shows you can still get a working machine for under £500
https://www.flickr.com/photos/76540819@N05/sets/72157651796012533
https://www.flickr.com/photos/76540819@N05/sets/72157651796012533