I miss manuals...
I agree that tutorials are a very important part of games. I have learned, and loved games which had neither a tutorial nor a manual, but it's rare that I am willing to put that much effort into a game which I don't even know if I'm going to like.
That said, I hate compulsory tutorials in games which I wind up replaying. The tutorial dungeon in DOS is a mixed bag. On the one hand, I like that you can skip it. On the other hand, I hate that you need the XP from going through it.
