The most expensive pin I ever purchased was my original AC/DC Premium. $6500 + shipping. I've added probably $750 worth of mods to it. It was a gift from my wife for my birthday and my disability retirement back in 2013. It's bolted to the floor and never leaving. In comparison, the cheapest pin I ever bought was $600. It's a Bally Future Spa. I love it too and I got it cheap enough that I have no need to sell it.