Thanks for the positive feedback, guys.
Tedparsec, that is a very prescient question because this model is tied in with some very specific goals and ideas, but they don't have anything to do with a miniature city, so for now I will just describe it as a design exercise and a boatload of fun.
It is like Sim City. I liked that game. Nothing would stop me, or anyone who has the urge from modeling their most successful megalopolis. We don't have to stop there, though. Why not envision the future of your favorite city or your vision of what your hometown could become? Why not recreate a place you loved as a child, or a small town you saw in a distant land while traveling on vacation? Dream home. Alien fortress. Ancient civilization. Anything you can imagine. Places are very powerful things to people.
These things don't have to be literal transcriptions of information. In fact, I think it's better if we let ourselves ignore the subject of accuracy and explore those things in terms of their symbolism and overall relationships. The catch is that the expression has to be self consistent and has to follow some physical rules if it is to exist. It's a delicate balance, but every time I make one of these it gets easier.
I misspoke when I said it's 37,00 triangles. It's 37,000 polygons, but most have more than three sides, so it's actually more like 72,000 triangles.
It might seem a little weird to focus on efficiency of the model at this stage since I'm nowhere near the polygon limit, but since my design specialization is in the visualization of ideas and information, I'm interested in finding out where the limits are. How many structures can I personally design without relying on automation and in a reasonable amount of time? Where is the line between making a design decision that carries a meaningful expression, and what is simply redundant labor that could be automated without sacrificing the accuracy of that expression? How much information, how many ideas can be encoded into a single model? What is the limit of visual and tactile information density? How does that relate to our ability to comprehend it? What form of visual language would be the most effective? Which aspects of that language would be cultural, which aspects would be innate? What systems of thought require the least information to be learned before the system becomes functional?
Right now I don't see a limit. I just keep bounding forward and each answer raises a hundred more questions. I am overwhelmed with work as a result of these explorations.
I wasn't going to get onto this subject because I'll end up writing a book on design in a response to my own forum post, which is kind of lame.
If anyone is interested I'd be happy to put some time into making a tutorial about 3D environment models. Thank you all for taking the time to respond to my design.