A yacht with movie theater, gym, swimming pool etc costs about $25m. People who can spend that kind of money can also spend $1m or so on staff who will take car

A yacht with movie theater, gym, swimming pool etc costs about $25m. People who can spend that kind of money can also spend $1m or so on staff who will take care of you and the thing. When you have that kind of luxury vessel, it's also not hard to get famous artists and other intellectuals join onboard with you on vacation to exotic places (you are probably already friends with them). So ultimately its of little pragmatic value to have apartment on cruise ship vs having your own private yacht. But here's the thing, when your net worth is even just few billions dollars, you are likely making $100K or so every hour of your life. So why not have both?