Certain skills become far less useful after a certain point in the game too. One-handed weapons are great when you start off, but two-handers are far, far better from Act Two on.
Chances are, you will finish the game with around 40 skill points, which, to put it in perspective would be enough to give a specialist two-handed fighter level ten in Deathblow, Damage, Accuracy and Critical Hits if he wanted. Those are the four branches of two-handed weapon skill.
To get that, said two-handed fighter would have absolutely NO skills that are not directly related to his sword!
That is how rare and precious skill points are - and that is why you will probably have to umlearn at least one or two skills over the course of the game.
