What can I say?

There's some airline pilots who like rental properties to generate long term wealth [we call these "the smartest"]. Some who like GA aircraft. Some travel. Some pour it into second (or third, or fourth) wives. Fancy pools, insane woodworking sheds of astronomical cost to build the penultimate spice rack at the cost of losing a finger, then those who grow their own hops to brew their own beer and keg it for use in a custom nitrogen dispensary system, or boats valued in the six figure range to entertain the youths.

Miatas.

Then there's the real weirdos: rare book collectors.

To each their own. Takes all kinds.