Stewart Money has some thoughts on SpaceX’s recent announcement:

The initial success of the Falcon 9 and the introduction of the Falcon Heavy are revolutionary enough. If over the coming years, however, SpaceX is able to successfully transition the Falcon to a fully reusable launch vehicle, then the stage on which the entire arena of space exploration is cast would be radically redrawn. Simply put, with the advent of a fully reusable Falcon series of rockets, a heretofore unforeseen level of space exploration becomes not simply more affordable, but in all likelihood, unavoidable. Once a permanent human presence on Mars is within practical reach, failure to pursue it, many will argue, becomes a moral transgression against humanity itself. To be sure, Musk’s vision of thousands of émigrés to a new world will have to wait on new, even larger rockets, but his company has a plan for that as well, beginning with a large staged combustion engine it wants to begin building next year.

While “within reach” does not mean “within grasp”, it certainly bears serious consideration from a space establishment about to consume the better part of a decade and plow, at an absolute minimum, the equivalent cost of 144 Falcon Heavy flights at 53 tons each into a single 70-ton launch by 2017. With a projected launch rate of no more than once per year, and the 130-ton super-heavy version of the SLS expected no earlier than 2032 and sporting a price tag almost certain to exceed $40 billion, it is not a stretch to believe that SpaceX has a better chance of achieving reusability with the Falcon than the Senate has of achieving orbit with the heavy version of its “monster” rocket.

Of course, they could both fail (it’s likely in the Senate’s case), but as he points out, even without reusability, SpaceX will be commercially dominant.