To my own suggestion I believe is still very early to buy Bitcoin, because there are some type of coin that will want to compete with Bitcoin even if it is not now but in the future.
So Bitcoin would not like to give up or let those coin to pump up more than them. For example like Pi, if they want to list Pi on Exchange they will give it a good listing price so they compete with Bitcoin
If PI really lists at that price I think almost more than 60 million of their active users will become millionaires and economic inequality will be resolved in an instant. Amazing. but, as far as I know there has not been a token or coin owner who is able to provide that in real terms for miners or after buying their coins. it could just be a testimony.