Depending on where you live, rent/mortgage is generally 20-30k a year for people who can even consider this. Add in utilities, property tax, etc and it is not that much higher. And if any meal plans are included in this, it is potentially cheaper than what a lot of the FIRE crowd would be expecting to pay.
That said: After cruise ships became literal plague ships in 2020, I do not know why ANYONE gets on a frigging cruise anymore.
That's per person, double occupancy. Going alone is $64k.
But it does include meals, housekeeping biweekly, port fees and taxes, and all the amenities on the ship. Honestly not bad, if you can sell your house and downsize into a suitcase.
Maybe for a cruise of that duration, yeah. I'm just comparing it against what I make in a year and how much it currently costs me to live in a house on land.
I could afford to make it an "or" situation but not an "and".
$40k a year is probably for a tiny inside cabin with no window, and only enough room for a week's worth of clothes. And no permanent address, if you want something that is not available on the boat you will have to figure out how to get it at the next port.
You can order amazon deliveries to most cruise ships now. They have onboard slavesvalued team members and a desk where you can pick up your packages, and amazon handles the logistics of getting stuff onto the boat. I fucking hate them all the more because of how impressed I am by this truly astonishing feat of logistical engineering. I guess it makes sense that they could do this though, since amazon already has installations at pretty much every port in the world this isn't much of an investment on their part.