When I saw the article linked below, I thought of this offer from the Science Fiction Book Club that appeared on the back of Astounding in May 1955. The price of a ticket has gone up since then.
With thousands signing up as early space tourists, a new race is on - International Herald Tribune: "PARIS: The week after Richard Laronde returned home from a 16-day trek to the South Pole in January, he bought a ticket to outer space.
For Laronde, who had also journeyed to the North Pole in 2006, making the decision to splurge $200,000 on one of the world's first commercial spaceflights took about as long as it takes to do a Google search for 'space tourism.' 'As soon as I got back from the South Pole, I got on the Internet,' said Laronde, 56, who owns a prospering event-planning business in Boston."