Nowadays you haven't really arrived until you can afford to fund your own space program. :-)
Space travel may be another level above that.
Charles Foster Kane: You're right, I did lose a million dollars last year. I expect to lose a million dollars this year. I expect to lose a million dollars next year. You know, Mr. Thatcher, at the rate of a million dollars a year, I'll have to close this place in... 60 years.
Early on in their life as a company, they had 3 back-to-back failures. They were a laughing stock of the industry for the most part. The idea that this little (by comparison to NASA or some of the established private players) company could take on rockets and make them reusable was a joke.
But Elon (and IIRC Peter Thiel) poured more money into it in spite of this, and they were finally able to get moving and are now (at least in my mind) at the forefront of the industry in many areas.
Well, at a net worth of approximately 90 billion and assuming a 5% return rate, he can spend 4.5 billion dollars every year forever on the blue origin and never lose a pennY.
This is play money for him when you are that rich.
I used to wonder what could happen if the guys with billions decided to do something interesting with all their money. This is some of the most interesting stuff I've ever seen. Some guys buy sports teams, some buy hookers, some just fucking blow me away with their ambition.