Would you say its probably 5 at the absolute minimum? I think the number is either 5 or 10. If btc hits 300k, that is 1.5 or 3 million dollars. After taxes, you would have 1 million or 1.8 million right?
It all depends upon your financial strength and the bank balance you have, right now the price of is well above $10k and if you have the money to invest hundred thousand dollars then you are already settled in life

. If you were able to accumulate when the price of bitcoin was really low then it would have being great but now you need big bank balance to invest in 5
BTC to 10
BTC, invest what you can and trade smartly will be my advice.