Another product of MMORPG culture I guess.
I mean, as long as there are enough enemies to help you level adequately, I would much rather kill new mobs in new areas rather than go back to the same area and mobs over and over just to level.
And here I thought grind was supposed to be a bad thing. It's what you are forced to do when a game doesn't provide enough new challenges for you to level on before moving to the next area.
But I guess MMOs have created a new brand of gamer that likes to just mindlessly grind easy stuff in order to progress in the game.