I have The Sims installed on at least one computer in the house. I have a little family. They live in a little house. And that's it. I can't make myself play it. I spend a lot of time wondering why I hate playing The Sims. My daughter loves it. My son plays it to understand it. I look at it, and turn it off.
Today Stewart Woods gave me a hint in his playful comment below. I play with real people every day. "I have 25 new students, and I make them read these books and do these tasks. I give them this much time and I reward them like this. What will they learn in three years, how will they relate to each other, and what will they make of themselves afterwards?" Only... this isn't a game. I don't change the parameters of the study in order to "see what happens." I do it because I want real people to have real experiences and give them the knowledge they need to deal with the real tasks they will be given when I can no longer help them.
In my spare time, I want a dagger in virtual hand and a drow to backstab.