I recently attended a committee meeting of the Texas State Library and Archives Commission. I listened as a librarian from a small municipal library lamented that Stephen King cannot write another book because she simply does not have the shelf space for another 800 page tome.
Her weeding process is sound. She maximises every inch of every square foot in her library. She has designed and redesigned her floor space to capitalize on every nook and cranny available to her. Still, she is forced to make decisions about the growth and development of her collection based upon criteria that may not serve the patron in the long run.