Let's start by saying that if you have that money in bitcoin you hodl or if it's fiat you buy bitcoin. For me that's clear as day.

However i think the prediction market for investing in rare cars is infinitely more refined than prediction markets on bitcoin. Cars have been around much longer and somewhat of a base can be created on the past 100 years.

For bitcoin i have yet to see the first person in the world make accurate predictions. There have barely 13 years passed since introduction so any kind of assumption about the fiat price in 13 years is a far bigger gamble as i see it.

I'd still pick bitcoin without blinking though.