Lots and lots of books are available used, but the ones at the end of the "long tail" aren't and probably never will be, and that's the most exciting thing abou

Lots and lots of books are available used, but the ones at the end of the "long tail" aren't and probably never will be, and that's the most exciting thing about this for me. I have actually done as he described and traveled to Chicago, Minneapolis, and Washington DC just to visit libraries that had books that didn't exist anywhere else, and would have been grateful to be able to pay for scans instead of making the trip.