Do signed copies excite you? Tempt you? Delight you? Or does it not matter to you?
It usually depends on the author. I stood in line for hours just to get Neil Gaiman to sign my copy of "Stardust" five years ago, then again this March so he could sign four more books. They're not collector's edition or anything, but I love the guy, and I love his works.
If I don't really like the author or the book, then I'm not so hunky dory on an autographed copy.
Booking Through Thursday: Signature