I want to chime in here. The reason they didn't give us larger maps is simple: they wanted to "socialize" the game. By limiting the map sizes, they force us to rely on others to help out with resources, special buildings, etc. And it works. I'm constantly finding myself trying to get other people to play with me because it really is a PITA switching from city to city, trying to remember what is where. Players become their best marketing tool. IF they really, truly wanted to, they could have made larger maps an OPTION for those of us with high end machines. I'm really rooting for all the smart modders out there to figure out a way to make larger maps possible when offline mode turns up.