I've come out in favor of private industry taking over for NASA before, and I haven't changed my opinion in that regard. There are valuable resources out there to be mined, refined, and shipped back to Earth -- at massive profits. Think Bill Gates is rich? How rich would the guy to find something like
this (posted before by Sirgod) be?
Having private industry run cargo to and from ISS would be a start. Getting a privately run refinery/shipping station for all the
helium 3 on the moon would be the next step.
Beyond that, the sky is no longer the limit...