BOP is a great game that requires quite a bit of flipper skill to get through the modes. Ive NEVER managed to crack this machine and then at Pinfest i was shown how to play it and the guy got through all modes on the first ball.. then done it again.. then again. I had to walk away... came back 15 mins later and he was still busting this machine and was only on his second ball. I finally got another go on this game, copied his technique and still couldnt do it... guess i was humbled!
Look for wear around the horseshoes and at the bottom of the ramp.... these areas get a lot of play.
Price wise?
Up to $2200 for a really good example... cheapest ive seen one sell for was $1200 on Ebay. That price has never been repeated as far as ive known