That's a completely diffeent perspective. But, we must not forget, that we live in a world full of people of all types, who love to stay at a single place, people who can never stay at the same place, people living in antartica, and deserts. People involved in research and yeah, The military of course. So, you have someone for anything and everything.
RE: Musk gives more info about launching off to Mars within the next decade[TL;DR]