Bitcoin is the topest investment all over the World and that made number of investors billionaire and there are number of investors who became rich by this investment.
those who became billionaires probably started with million dollars as their initial investment and not a lot of people have that amount of money so i do not think we should be focusing on that instead we can talk about many people who can’t afford to buy lands or other rental properties but have bought bitcoin and now could afford these properties no they are not billionaires but they definitely earned a lot even from a not so huge initial investment and that is what makes bitcoin so attractive as an investment especially to middle class