I picked up one a couple months ago in a trade plus cash....fun game IMO. It's not terribly complicated but it gives you a lot to shoot for. Watching the ball go up high and down the main ramp that drops the ball to the left of the PF never gets boring for me. I have a nice one with LEDS....just need to shop it out a bit.
Look to make sure the right most ramp isn't cracked at the entrance....it's notorious for that. Also check the snack stand scoop as it gets wear if the game was routed badly. Cliffy sells protectors for all this stuff. Oh and check for updated ROMS...mine still has old 4.1 ROMS and I think it went up to 7 or so. These will give you your price check. I got a bit more in my trade but I'd pay 2k for a nice one.
I'd like to see a fun MOD for the troll doll back there....I think the idea of him bopping up and down is neat but needs a better toy. Something more interactive with the theme music and sounds.