I just got home and I'm looking at this book shelf now and there's probably less than 150 books here. I'm just incredulous that you can have a 10,000 book library without being incredibly eccentric and wealthy, or maybe a well off professor or book fanatic. 10,000 books must take at least 1000 sq ft to store (assuming you arrange in such a way that these books are accessible, not just piled 8 feet high in storage boxes) -- realistically probably double or triple that if you wanted a place to sit down and do all of this reading, unless you have extremely high ceilings and a rolling ladder.
I just did some quick googling, and your assertion is the equivalent of owning 1/5 of a smaller sized Barnes & Noble, the smallest of which are around 3000 sq feet, or a fairly large detached 3 story home with maybe 4-5 bedrooms in a suburban area. Yes, Barnes and Noble doesn't organize it efficiently for storage, but for display, my point still stands that 10,000 books in a personal library is extreme.