Sailboats aren’t prohibitively expensive for a normie, especially if you buy a used one. If you look at the large empty houses near every harbor though, you’ll see a better sign of the wealth disparity. The rich own multiple houses worth millions each and they seem to be rarely used while many people can’t afford a starter home now.
As my dad would say, "A boat is a hole in the water you throw money into." Boats are cool and fun if you like to sail, but between maintenance costs, mooring fees, the cost to take it out of the water and store it at a boat yard once the season is over, scrape the barnacles off, repaint it, etc. it's not a cheap endeavor.