Aside from the cost savings, the other goal of reusing boosters is to reduce the time between launches.<p>The challenge for SpaceX is to inspect the booster, integrate a new second stage &amp; payload, and relaunch in a few weeks.  With a few years of work, it <i>should</i> be almost like a cargo jet turnaround.<p>ULA&#x27;s Vulcan plan is to parachute the engines and pumps back, catch the rope with a helicopter, inspect and reattach to a new set of tanks.  That seems likely to be a little more complex to me.