What is the value proposition for Space-X?

As far as I can tell it is in machines they cannot make work, servicing markets that do not exist for a service that will not matter for 20-years.

That and a third rate AI company that no body wants, except to get rid of.

This will probably go swimmingly at the start - but as time goes by and they raise more capital, Musk snorts more K and the glory fades, what then?