After being sucked into the World of Warcraft for nearly a year, I was finally able to choose a moment to exit when my raiding group downed Ragnaros. Killing a big endgame boss gave me a sense of closure that allowed me to finally feel that I have "completed" WoW. Of course, there is always the next Timesink Cavern around the corner with even better purple pixels but that was not a path I wished to pursue any further.