“What happens to your investment after the ship is scrapped?”
If you bought into it for a retirement place you’ll be dead before the ship is scrapped.
If you use that same $366K to buy a house or condo, after you die your heirs get to use or sell the asset. Chances are the asset will be worth at least what you paid for it (not including the monthly maintenance fees.)
This is more like buying a luxury motorhome to live in that depreciates to almost zero after 20 years.