When the Wright Brothers first discovered flight, there were public airlines within the decade. What I don't understand is that even today, when in 2004 SpaceshipOne managed to surpass the Karman line (the official border of outer space) for 1/1000th of the cost it took Yuri Gargarin to reach it, the private industries, and indeed NASA as well, has almost completely neglected to advance the travel industry in space. Not only is it obviously more timely due to the lack of atmospheric drag, but it is also the ONLY way space travel will make a profit in the near future, while missions today generate almost $0 in revenue. Why haven't people taken advantage of this technology??? The payoff would be immense, given the potential for demand, not just for travel, but for being IN SPACE!!!