At least your RENT playbills are from over an extended period of time and therefore probably at least a little bit varied from each other. I have two bundles (I think that's 25 per bundle?) of the exact same Cry-Baby Playbills. I have a bundle of Adam-and-Anthony last night Playbills that were actually pulled out of the dumpster the next day.

Hell, I have five Next to Normal Playbills and I didn't even see N2N.