I think Sir Richard believes that his space facility will actually see greater use by visiting aliens than by earthlings. Think about it, there is plenty of evidence that alien ships have cruised our planet. Only thing is they never stick around. Can you blame them? Earth doesn't have a single facility catering to interplanetary travelers. Until now!
No doubt, within a few years the dark side of the moon will be illuminated with giant 3-d neon signs proclaiming:
GAS FOOD LODGING
ALL CARDS ACCEPTED
SPACE TRUCKERS WELCOME!
Space is the place kids