You're not. Once upon a time, though (at least at the Borders where I was a music dpt. manager, and I'm pretty sure it was like this at other stores), we were allowed to do one-stop special orders about once a week, and we frequently stocked up on coming-to-town titles. However, my understanding is that that ability to special-order through one-stops was curtailed and/or eliminated several years ago.
That strikes me as pretty damn stupid.