i think is not really late to buy some coin , if bitcoin rise up to 10 000 $ you'll feel so sad for the stupid decision that you made nowdays , it's very difficult to see bitcoin falling to 1k$ , if it is , it will be falled down to 500 $ too !!
If i need to profit now with bitcoin with the price so high i have to invest a bigger amount of money to make a good profit,with the case of volatility we see in crypto currency anything is possible.You could see a price crash if something happens to the network and so on.