I believe that the human race has developed a form of collective schizophrenia in which we are not only the slaves to this imposed thought behavior, but we are also the police force of it.
I would think flying would be pretty cool. You would be able to fly away from all your enemies and get where you're going much faster. But being invisible? You probably wouldn't use that for the good of man.
Few bands in hard rock history have been so adept at balancing the awesome and trivial as Van Halen in their prime.