If there were a hyper inflation fiat crash scenario and bitcoins were 10k 100k or 1 mil. I would still cash out a few provided fiat could still buy products. If everyone accepts bitcoin it doesn't matter.
if you know deeply about bitcoin and think about long term investment you might will keep it forever
nowadays bitcoin shows a promising movement
look at how bitcoin price jumping every year
you should not regret twice when an early adopter experienced in the past still could happened today and tomorrow.