If you actually wanted to build a base on Marie Byrd Land, I'm sure it could be done relatively cheaply, in the tens-of-millions-of-dollars range. Then quite a

If you actually wanted to build a base on Marie Byrd Land, I'm sure it could be done relatively cheaply, in the tens-of-millions-of-dollars range. Then quite a few more million dollars a year to keep it supplied and running. Certainly well within the capabilities of any multi-billionaire. It's still not clear why you'd want to, though. I doubt you could avoid much in taxes, and it's really unpleasantly cold down there. On the upside you'd probably be safe from pirates. edit: A nice yacht is probably cheaper per square foot than an Antarctic base, and tends to have much better weather.