We each have different goals when we play WoW. I play because I enjoy the social side of things, and my ultimate goal (if I had all the time in the world) would be to play every class to level 60, visiting every area and dungeon, finishing every quest line. I love the depth of WoW, and I like seeing the tricks that other classes can pull off to surprise me; I want to learn them all. I'm not in this game for epics, but I know many of you are. If I achieve that goal, I may stop playing, or I may have found another along the way.
What's your core goal in the game? Have you left WoW and returned, or has it always had a place in your life?