Let’s say you had some cash and you want to put it in something enjoyable that would maintain its value and then resell in 2 years from now. 

Maybe not appreciate. But at least not depreciate.

What would you buy?

A couple ideas I had:
Old classic car.
Small airplane.
Some valuable art.

Building /stokefire a mobile strategy game onchain. Run and own poolfish.xyz a calculator for LP providers. Built Potion solo and sold for $300k.

Probably jewelry 
Plain Jane watches usually appreciate or stay the same price 