50 hours... i think i've done more thna tha with a few friends in wow lvl grinding, we took 3 days vacation plus a weekend and all did the 70-80 grind over, none of us hit 80 in the 5 days but we all got close, and none of us really slept for more than a few hours a night, and i know some people did it in that timeframe.. while i have probly not done by these standards, some of the people who managed 80 in even less time i can't see them having pulled it off without doing those standards or harsher