Let's imagine a rocket like the Falcon 9 recovers its first stage via a soft landing, but doesn't attempt a return to the launchpad. For the sake of argument, let's imagine that there are no geographic constraints on the landing location, as would be the case in an ocean barge recovery.
Roughly where does that put us? In such a scheme, what is a reasonable number for the distance between the launchpad and the recovery location? There's no doubt we have plenty of historical precedent, but I'm sure there's fairly broad interest in the subject and I can't manage to easily look this up myself.