Base of its current price compared to its past price then we can say that its too late to buy bitcoin, bitcoin is very cheap when it first traded to the market but now look at its price it rise very high,and it needs a lot of money to buy bitcoin, so it is really too late to buy bitcoin today, but still there is a chance of earning if we buy it and wait till it will go above 150k$ but we need to take a big risk to earn.