It is especially good if you use a 2-monitor setup, you can refrence whatever you need on monitor #2 while you play on monitor #1 without having to wrestle with a fold-out or flip thru a book.

It is also nice if you play on your laptop at school, because opening up a fold-out probably isnt the most convienent thing to do there.

Anyways I hope we get some online documentation like for last game, it is very easy for the publisher to do and while it might not be used by all I'm sure it would be quite convienent for some.