Mildly off topic:
Until we can make vast improvements in launcher reliability, perhaps we should stick to 1960's technology for that aspect of space exploration. Getting off of and back onto Earth's surface is an extraordinarily difficult task and it will remain so for the decades to come.
Rather, in my opinion, we should be focusing upon building infrastructure in and beyond Earth orbit so that we can get people into space for longer durations. The infrastructure that we do develop needs to be fully repairable and upgradable in space, rather than retired after a relatively short duration. Simply put, it is too expensive (in terms of energy and dollars) to transport materials into orbit only to dump those materials back into Earth's atmosphere a decade or two later.
Once we get the foundations in place, developing reusable launchers will be necessary. Hopefully they will also be much more viable by that point in time.