I like to loan my books away. And it's not often I see them returned. No big deal, usually - I've gone through several dozen copies of Ender's Game, and Ishmael's getting up there too. The difference is, those books are widely available. I can walk into any bookstore and replace 'em. Heck, even my out-of-print collection isn't so bad - used copies crop up online more often than they used to. But, when I have to special-order directly from the publisher, and it's their only current publication, this might not be available to restock later.
So, now I'm prepared. One of you can flake out, and it won't even phase me.
Who wants dibs?