I see them for sale around $4500 but they seem to sit at that price. A very nice one sold just before York for 4G I believe (not sure HUO or not). You can search here for threads & prices.
It's a title that tempts me a lot but the gameplay hasn't wowed me the few times I have played it. The crane is cool & the cabinet is awesome though. Too many other choices at that price point for me.