Quoted from Exejet:Funny when the game came out it didn't sell all that well. The production numbers are low. Worst part is if you own Iron Man you better grab a extra Monger if you can find one and the clear plastic plate that sits on top of the monger. Mark my word Mongers are going to be $500 before you know it. Stern screwed up by not having extra Mongers made. My IM is staying very long term! I actually grabbed and extra playfield too! That was the last of the cheap Stern playfields. I think I paid $285!
The Monger seems solid as a rock to me. I've also played the IM at Disney Quest, and while the machine is beat all to hell and probably has 50K plays on it, the monger is the least of that machines worries.