Fighting the MMOG Burnout

WorthPlaying has written up another massively multiplayer article, this time discussing such games can make a person feel "burned out" after a period of time. A snip, as usual:
Oddly enough, the game that comes the closest to solving some of these things is City of Heroes a game often maligned for its lack of depth. In CoH I can get a mission from my contact that moves me through a dungeon, or yes, forces me to kill 10 hellions, but the missions over time at least give me the impression I'm uncovering some clue about what's going on. That fun lasts until my current contact runs out of missions to give me and the next contact tells me I'm too low a level; after that it's back to grinding out gang-bangers until I hit the next level. World of WarCraft stands some chance at doing this, as there are Right of Passage quests that are class specific and have hints of the story elements you see in single-player games.