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?
So here's the scenario: btc hits $300k and you sell all 5 bitcoins you have thinking you are now a millionaire and set for life. A few years later that $1.5m is now worth $700k due to inflation, and the 5 bitcoins you sold are now worth $5m.
Do you see my point? I don't see this being a game to become a fiat millionaire, but a game to get out of crashing fiat. The challenge is to do that with fiat you don't need to live on, money you can afford to be without for a few years. Most people live paycheck to paycheck, buying bitcoins for the future is simply out of the question.