Sure why not? It would be cool to have "enclosed" cities (as in a big dome, only with multiple levels). Huge structures that are several miles across, but self-contained and multi-level. So you'd have houses and apartments on one level, and work spaces, offices, business, malls, etc on the lower levels. The temperature would be controlled at around 72 every day, and there'd be no need for a car, you simply hop in the elevator to go the floor you work on. And there could be ample rooms on other levels for farms and hydroponic gardens. There would be electric carts to drive you if you have to cover a long distance. You'd have everything you need and never have to leave "the dome" (except to go to the Las Vegas dome for recreation).