no. Not too late, I think bitcoin will still be able to skyrocket again from now. Many rumors circulating btcoin will soon break the $ 5000 price tag. So it's still not too late for you to buy it.
And after breaking the wall of $5,000 we will now be expecting to rise it up to $6,000 - $10,000.
So there's no way for an investor to invest in bitcoin too late, there's a new generation for the new investors today.
And we are not that late guys.