Not sure how many were made, but it's a really fun game, for sure. I enjoyed it on location, but it wasn't until I picked one up that I really discovered what it was all about. The code update did wonders for the game. The one I got was running 2.2 when I tested it out...final code is 2.94. It made quite a difference. It often gets labeled as a one-trick pony because the crane is really the only interactive toy, which I understand because the Batmobile ramp and Joker can are purely aesthetic, but it really has a lot of strategy going on if you're into that. Honestly, I find it to be LOTR lite...gameplay, rules and layout are similar, plus it has multiple "wizard" modes. If you play one that is setup well, it's an awesome game, IMO.
As others mentioned, the voice actors are one of the big downfalls of this machine. At first, I was kind of bummed about it (being a fan of the movies), but you get used to them. (And really, who the hell cares...they're voice call outs.) Not as great of a theme integration as LOTR, but if you like the Batman theme, it's still really solid.