Basically my thinking is:
- There are going to be certain luxury goods whose supply is limited.
- I framed it in terms of hobbies in order to point out that in many cases "luxury goods" aren't just frivolous comforts but are instead things that people need to achieve meaningful personal goals.
(Also, on a completely off topic note: that's really interesting to hear about sailboats. I'm going to have look into how much they would cost to own and maintain in my area!)
That's the main reason why people half-jokingly say that the two happiest days for a boat owner are the day when they buy it and the day when they manage to sell it. Still it's worth all the effort if you have the time to sail it regularly. Otherwise, chartering (renting) a yacht for a period of time can be a much better option.