I played eve online and i think the clan, the politics, the social interaction created a long term motivation for me. If i had to pick 1 thing only, dont know how to call it in english, but its that the players created something, i enjoy reading the ingame news. its fun to be in the game with a clan from the scratch and see how it grows into something big, almost like watching your own stats how they get better but also watching how your favorite football team improves over time. what keeps you in MMO games?