MMOs are games of repeated content. You log in and do some things today, then in all likelihood log in to do several of the same things tomorrow. That’s a part of the genre, whether it’s a matter of “killing this boss in World of Warcraft until he drops the sword I want” or “rebuilding my kit in Darkfall after someone killed me and took my stuff.” Fundamentally, it’s repeated content.
Many games have sensibly made a lot of this regular content have reasonably fixed limitations. You can only earn so many tomestones a week in Final Fantasy XIV, for example. There’s a set limit on reputation gains per week in Star Wars: The Old Republic. There’s the nature of daily quests in, well, every game under the sun with daily quests. You get the general idea.
So here’s the question: How much time do your regular MMO tasks take up during a given day? Do you just hop in, get login rewards, and depart? Do you regularly spend an hour just doing your daily tasks? Or, for that matter, do you tend to lose interest in a game once you’re on to doing regular maintenance tasks?