re: The thing about space tourism...
How about deep space probes showing them amazing new worlds
and stirring in them the desire to go there themselves?
"If you want to build a ship, don't drum up the men to gather wood, divide
the work and give orders. Instead, teach them to yearn for the vast and
endless sea."
- Attributed to Antoine de Saint-Exupery
http://en.wikiquote.org/wiki/Antoine_de_Saint-Exup%C3%A9ry';