We've got more books in our house than the town library.
Me too. People think I'm exaggerating when I say that, but I'm a librarian, and I *know* I've got more books at home than at work.
For libraries, as a rule, the amount of space available is inversely proportional to the number of books you need space for. We need a larger building...or a Bag (or Shelf?) of Holding.