They were really hard to find in stores as well. It was a limited run, late in the merchandise release schedule. Little known fact, they came out the day the movie released in theatres, and the reason they were made was because of the production error of the first few batches being purple ... which clogged up store shelves. No one wants a purple Batmobile.
Anyway, I have three of them. Two open, and one MOC if you're interested in purchasing one. The open ones are safley protected in bubble wrap and have no damage if you're interested in not having to pay as much for a moc one. They are all in TOP condition.
BTW, CONGRATULATIONS TO ME!!! I just purchased a MOC Dark Knight Collection Batmobile (completely new in box) for $64 dollars. * Does Happy Dance* ... it was my grail, and is usually costs people and arm and a leg to get one.