Another related thread.
http://www.freerepublic.com/focus/f-chat/3375177/posts
Here is the vision Elon and SpaceX have for reusable rockets.
https://www.youtube.com/watch?v=sSF81yjVbJE
https://www.youtube.com/watch?v=Cf_-g3UWQ04
I can’t find the video, but he does show the Dragon capsule landing on Mars.