I think it's rather obsessive to actually DO all the work for all of your classes (or what you think the work will be, anyway) before the classes even start. I mean this girl got the actual casebooks and presumably the syllabi so she knew what was assigned last year, and was actually doing all that work before classes started. What if she got different profs, or the prof changed the book, or changed the course around a lot? She'd have done all that work and have to start all over again. Doesn't seem like a good use of time. General studying of primers, outlines, etc. on the other hand is a different concept altogether.
PLS said to "study smart" not "study hard". And I believe that.