You can cruise year round on like $3k a month, it's not that luxurious when you consider that it includes room, board, food, maid service, activities, etc. Especially compared to how expensive old age homes are.
It just sounds unappealing and expensive to me, but that's me.
Cheapest 15 day Cruise on Norwegian is $649. Just line those up back to back. They even have an offer for 70% off for your second guest, which makes it ~$900 for 2 people.
https://www.ncl.com/vacations?duration=15+&sort=price_low_hi...