It's never too late for buying bitcoins, but it's important to choose right moment for jumping in, sort of speaking. Price is going up and down all the time, so its best for you to buy while price is in some dip, then you can make profit in shot time.
Bitcoin price will go up in long term, with that everyone here agrees, just holding bitcoins is great way for making more money. When you buy bitcoins stop reading about any speculations and predictions, just hold your bitcoins tight and don't care about what others are saying about it, don't let them bother you with bad news.