Sim City isn't just online for DRM, it's a multiplayer only game like Diablo III. There is no single player, there is only making an online game without other people. There is no reloading an earlier save, there is the persistence of an MMO.

It's a shame, I would have loved a new single player city building sim but after seeing how badly Blizzard screwed Diablo III there's no way I'm trusting EA to manage this.