Well, me too but it's not finished as we have all the other difficulties to get through.
I'll play through nightmare if you want to?
Also, this is from the TOU that we agreed to:
BLIZZARD DOES NOT WARRANT THAT YOU WILL BE ABLE TO ACCESS OR USE THE SERVICE AT THE TIMES OR LOCATIONS OF YOUR CHOOSING; THAT THE SERVICE WILL BE UNINTERRUPTED OR ERROR-FREE; THAT DEFECTS WILL BE CORRECTED; OR THAT THE GAME CLIENT OR THE SERVICE ARE FREE OF VIRUSES OR OTHER HARMFUL COMPONENTS.
They have themselves fully covered for times like this when you cannot play the game you paid for.