SpaceX was founded in 2002 and has around 660 orbital launches with a fully reusable system. They build rocket factories.
BO is absolutely the underdog, in every way, unless you want to count 38 suborbital joyrides, then they're ahead at 38 to 0.
After a long day of working on a car I would much rather have it fail to start because I forgot to connect the battery than fail to start because the starter I replaced had been returned to the store by a previous purchaser, with the wrong part in the box, which was mechanically compatible with the mount but not with the flywheel. (Hypothetically speaking…)
The Washington Post, on the other hand, he purchased as a trophy. That's the vanity project.
Is SpaceX also a vanity project? No, Musk actually wants to expand human civilization beyond one planetary sphere.
Just because they're billionaires doesn't mean they're full of shit. In fact, in both of their cases, it means they're extremely driven by... real ambitions.
So obvious.
Does he want to expand human civilization for the benefit of human civilization or does he want to be the man who made that expansion possible?
I can absolutely see real ambitions behind them, I just think these ambitions are driven by vanity (and other "vices")