Nobody (*) can imagine the vast market of construction materials and rocket fuel in refueling station on Earth orbit. That is, until some enterprising souls wou

Nobody (*) can imagine the vast market of construction materials and rocket fuel in refueling station on Earth orbit. That is, until some enterprising souls would invest and create some, and rise the hype enough to start building satellites and stations which would take advantage of that - after all, fuel and construction materials are the biggest parts by mass, and mass lifted from Earth costs pretty penny. The trick with pioneers is that they carry oxygen from the Moon, as well as titanium and aluminum - and that's the killer feature, allowing to drop prices safely below the abilities of Earth-based enterprises. Of course the profits are in part reinvested into growing the Moon base - which would be better called Moon settlement then.