He just had to move one. :}
Yup. That would explain it. LOL.
I still have a lot of dead tree books, but for quite a while now, I've bought nothing but ebooks. I've gradually been reducing the dead trees down to just a bare minimum of stuff I don't have electronically. I've got almost 2000 on my ebook reader. Makes moving them a lot easier.
Since I deal in used and rare books I have access to a bunch of books that I pick up for pennies so I can indulge my vice cheaply where I would have to pay through the nose for electronic books.