It's not too late, and many people are buying bitcoin because they think it will be more expensive in the future. 
we will have a bigger return with the coins we buy at a lower price. It's certainly not too late, now the price of bitcoin is getting lower. I think this is a good time for us to buy and stay for a while. Because I think the sooner it will kick again the price in the market cap. Bitcoins are worth when it gets high