Bitcoin is less than 0.5% of my assets and it won't made a difference if BTC goes up to $100K or to $0.
Then why do you even care about buying / selling it? Just hodl those coins for many years and you will get a guaranteed profit. The best way to di it is to ignore all the news from crypto world and avoid different forum discussions. It will only make you nervous and you will sell all your savings.
Because I am looking to make profit. Which I already have when I cashed out. If BTC goes south real fast, I could easily see Coinbase crashing or halting tramsactions. Now your $$ is stuck in it and you are hosed.