This blogger in particular has spent no longer than a month's running time in WoW before quitting, only to return for another month after some time has passed; repeat recidivism ad nauseam. After researching and playing numerous other MMOs, and still not finding that one "home" game, WoW is always there, solid and reliable. But what is it exactly that draws one back after an absence? Or causes one to keep a running account there even when not actively playing? What does WoW do better than any other MMO?
(And if at all possible, please, let's keep this from turning into a reason to bash other MMOs, okay?)