The amount of money spent doesn't really accurately represent how much a past time is "liked", since money (obviously) isn't distributed evenly. A more useful metric would be how much time people spend doing this in comparison to the other options, which is impossible to measure. Also in theory it could be literally 1 or 2 people doing the gambling if they have enough money, while everyone else goes to museums and listens to music.

It's even more true with the other options not being exactly expensive (in particular museums, but the other options are will). Try spending 50k $ gambling: no problem. Try spending 1k $ going to museums: you'll be busy for 2 years or something.

Basically the whole premise is just dumb.