Call me crazy, but I consider my library the books on my computer and the reader as an instrument to read such books. I consider the library as storage and the reader as a loaded device with enough material to last me until such time to re-load from the storage. I really don't have a desire to carry every book I've read and will read in the coming years on the reader. Now that being said, I am simple minded and I usually read one book at a time so maybe that is why I can't grasp the reason to carry so many books on the reader.