I'm not so sure the economics works so well for reusables. Flying a reuseable LV requires (as far as anybody's managed, we'll see with SpaceX) far more work than just fuel & go. Typically you'd need a lot of maintenance work and repairs between each flight, not to mention the added complexity to the vehicle required for recovery. That's largely why the Shuttle wound up pushing a billion per launch, instead of the $10 million initially targeted, or the $110 million marginal cost of a launch.