It is never too late i think if you buy now you will still have profit because bitcoin is going to rise again to the top and no one knows the actual top it can reach that is why i think there is no bad time for buying bitcoin.
Yes i agree, bitcoin is now rising. It was a few days ago 3200 now it its 3800 dollars worth. So if you had invested when bitcoin was 3200 you would now make profit or you could wait for it to rise even higher.
I think that bitcoin will hit 5000 dollars in the future i would then sell all my coins, and make some money.