Can someone tell me what's it acutually for other than the hat =/

I went today and did 2.
I'm a lvl 70 DK with like 1000 varies pots per HP and MP and during those 2 I used them all up =/
So I lost 8% [that's good for me since it was a mule] and gained like barely anything.
Is there a reason to PPQ other than for the hat?

EDIT: We didn't have a priest so that explains quite a bit.