Until space tourism is a destination-based business (e.g. flights to a private space station or to the moon), will flyers pay to fly more than once after having earned their astronaut wings? The answer to this is likely very dependent on the experience itself.

There are several revenue streams that are near and present that could support a private space station, including in-space manufacturing, microgravity research, and tourism - for both individuals and sovereign nation astronauts - and in-space supply logistics.