I'm not 50 yet and absolutely love the game so far.

I do wonder thiugh, about why you can hit 50 as a casual in 3 weeks.... I mean why create a massive world with dungeons and challenges every couple levels when they are meaningless? Maybe force people to gear a bit to clear the story on the way to 50 so it takes longer? then you don't have to force players into running the same place 70 times when they reach 50 to fill the time between content releases.

Just a thought