hmnmm... here's an interesting story to go along with your experience.
I emailed that dealership in Emmanus, PA on July 30th and explained the vehicle that I was looking for and also told them that I was too far away to come there and needed to have discussions via phone/fax or email. On Aug 1st I received an email that they didn't have the one I wanted and that I would have to order it from factory and that would take at least 2 months. I told them I'd get back to them and called a Pittsburgh dealership instead... Then on August 3rd I got an email from another salesman at the Emmanus Hummer who was replying to my original email as if I had never had communication with the other salesman 2 days earlier. This 2nd salesman told me they had exactly the vehicle I was looking for (minus the marker lights)!!! I arranged the installation of the marker lights, agreed on a price and picked it up on August 5th.
I wonder if something fishy is going on there? Could it be that they try that tactic and prefer that you order from the factory for some reason?? And since I didn't bite, they decided to give me one off the lot? I mean... they knew I wasn't going to stop in there.
<shrug> It was at the end/beginning of a month too. I dunno... just tellin' my story...