The Book Depository Must be Worth Millions

I woke up early this morning to the sound of coyotes running around my house, and rolled over onto a crumpled piece of paper. It was my receipt from the 4 books I received at the beginning of this year, which totaled to almost 200 dollars. That's 50 bucks a book. There are one hundred thousand million books in the book depository. You do the math.