If you buy a ship like this you can occasionally rent it out. They go for $425,000 a week so rent it out 10-20 weeks a year and your running costs are zero.
I think you would need to be a billionaire to do something like this.
So if you hold 1 BTC you need to wait 10 years

If anyone gets a ship like that don't forget to host a WO party 🤪😇
Sounds like a crowdfunding is in order. Rent it out for half the year to cover maintenance, then the owners get to use it for half a year. #BitcoinYacht.