Quote Originally Posted by Anteros View Post
I don't think it's ever worth it to waste a precious category point just to upgrade a category. Maybe if your build absolutely revolves around the skills in that category, but even then I can't think of any examples where it would actually be worth it.
Iirc the only category worth upgrading ever is Shadows on Doomed, because the cat point gets you a 4th shadow, which helps immensely with the locked shadow trees.