Non-SaaS, non-tech platforms and non-biotech companies have a really hard marketcap ceiling.
SpaceX builds stuff in the real world, macrostuff with millions of moving parts, that's like black death for economic margins, they also aim to go into an environment such as space which is very hard and has slapped us time and time again.
There is no convetional ROI for us up there, there maybe is in the form of artificial economics such as the morale boost that the country gets when a rocket goes up.
But if that's the case the US could just push for having the Olympics every 2 years given that it sweeps the gold medals everytime.
A 200k usd on a public SpaceX is a bet on Musk being able to convince people other than yourself that SpaceX is in fact a tech-platform a SaaS or a biotech.