User blog comment:True Aranel/Help With Character Building?/@comment-5337347-20120811044624/@comment-1687225-20120819135123

the thing is you generally don't need that many attunement slots to get through each bonfire, it'd just be overkill. 30 casts of Wrath of the Gods is fine and dandy but if you get to the next bonfire consistently with say 20 casts left then what's the point of getting all those extra slots?

If you consistently find yourself running out of casts and being forced to resort to your physical weapon when you don't want to, sink more points into attunement. Otherwise I say avoid it and find more useful things to invest in.