Sally asked:
BTW, would the fact that Blake's family could afford to send him on the trip indicate anything about their probable wealth, or
is
there anything in the show to indicate that long-range space travel for pleasure is cheap?
If anything, just the opposite...in Space Fall, Jenna says that hyperspace running is expensive. And, since Exbar is a prison planet with an unpleasant climate, I don't know if there's enough tourist traffic to have competitive cheap flights. But then, we don't know if there's any form of private enterprise, in or outside the "airline" industry.
-(Y)