You're right about MMOs. But what's missing there is the opportunity to do anything or many things. In an MMO, you can only do one thing -- play the game. And t

You're right about MMOs. But what's missing there is the opportunity to do anything or many things. In an MMO, you can only do one thing -- play the game. And that's fine, and millions of people are happy doing just that. But it's not a general-purpose tool.