I stop by here everytime before I do my grocery shopping at the nearby Metro... And I always come out with something in my hand - paid for, of course - they're priced very well.
If it's not a good cookbook, there's always a good dvd from the basement or just recently, I got my hands on a complete set of Douglas Adams' 5 part trilogy of The Hitchiker's Guide to the Galaxy from the 3rd floor Sci-fi section - My old set has seen better days =P I've also browsed the travel section, but would rather buy the latest edition of a travel book.
Admittedly, i'm not a big reader, but this BMV makes want to read. Great bookstore, very big and organized.