Yeah, until they shutdown the server shortly after the next Sim City is released, making your old game unless. EA has a habit of doing things like that.
I usually play Sim City by finding the unlimited money cheat and getting a large amount of money before I start. I can then build whatever I want. I enjoy the city design part of the game, not the economic part.
I doubt that this way of playing will be possible in the new Sim City.