The good news is that they are finally selling every form of "Unfit for Command" that is available.
http://www.walmart.com/catalog/search-ng.gsp?search_constraint=3920&search_query=Unfit+for+Command&ics=20&ico=0&Continue.x=3&Continue.y=8
My husband picked up a copy of Unfit for Command for me last weekend in WalMart - would have gotten it sooner, but they can't keep it on the shelf long enough. The one he picked up was the last copy they had, and were waiting for a new shipment.