I wonder, though, if the same problems will apply : high per-passenger-mile costs and restricted takeoff/landing sites. Eventually the Concorde overcame the per-passenger-mile costs but they could never evade the takeoff and landing restrictions. If they had flown the LA/NY route it would have been much more successful. I can see any type of space transportation coming across the same issues.
While flying twice as high as passanger aircraft, the sonic boom would still be a problem with the Concorde. The restriction would be greatly reduced with a suborbital plane, which cruises outside the atmosphere.
