Yes, it has flipped entirely over the course of time, from 2002 until today.
The other thing is the circulation. Our books are being used less. Indeed, many of our books are being put into a storage facility, where they are safely not being copied.
To go back to the course packs, what we end up doing is using our library licences, many of which allow us to put that into the course pack. We apply fair dealing to that, as well as anything else we license to be able to put it in.