I am also willing to make some serious concessions for the fact that I have many other demands on my time and have only played about 2.5 hours per night. I presume these other players are going in groups and helping each other out rather than soloing, but I don't think this explains all of the difference in play. Myself, I've managed to play primarily solo and get to Act 3 in Normal and a comfortable level 20. The ladder reset a few days ago, and already some players are up to level 90+.
