First off I would like to say that this is a totally new way of playing SimCity, and as such you need to learn to walk before you can run. We do not have access to any region creating tools or mod tools. Think of this game as the baby steps of something greater. I am sad to hear you won't support Maxis in redefining its Flagship title, but I certainly am. Do I like the limited space? NO, but I do understand them.
In many ways I am glad it is starting small. There is a whole new generation just discovering SimCity! I do not doubt that we will see bigger regions and plots, but one must keep reality in sight. Look at cities XL. It has as some ok concepts, but look at the size and remember how horrible it runs with all that data crunching. I do not want to see SimCity become bogcityXL.
Look at the overall potential of Glassbox. They are just playing it safe. Please consider supporting them, the ride is just started.