A while ago there was a thread about an article that claimed that more people than you think can afford to buy a Superyacht but less people than you think an afford to maintain one. The article called those groups "LeBron James rich" and "Abramovich rich" if I remember correctly. The article claimed that this was the reason that most Superyachts are "playboys luxury pads" (as another commenter called it) where most passenger pay in some form or other be allowed to be on the yacht.