It's never too late to buy a Btc. Just look at this image, or on the chart of the Btc and everything will become very clear to you.
Many traditional assets grow by 100 times too. Look at the Apple chart for example. But five or ten years ago practically nobody can predict such growth
We were talking about the BTC. The BTC will still rise in price even if it may not be a hundred times, although there are such assumptions. Remember John McAfee, and his optimistic forecast.

In my opinion if you have the opportunity to buy BTC, buy without hesitation. To then not regret.