A planet colonised and dependent solely on high tech for its own survival is a potential catalyst for radical innovation and trade. We could turn it into a place free or our earthly issues. Antarctica is just a cold place which we may colonise once it melts, start a few wars over it maybe, destroy it, exterminate its tiny wildlife and so on. Mars is already dead, hopefully not stimulating enough for our primitive instincts and will let us focus solely on tech advancement.