No it is not too late, although if you have waited this long you may be sad because the price did a x4 in just this last 8 months. I believe in time a 10k bitcoin is not very hard to achieve so no it's not to late, not this time at least.
That is the reason i have to tell everyone,there is nothing too late when it comes to investment,if you are able to invest at a lower price the better because the amount of profit you are able to make is really huge than the profit you could make if you invest at a later time.The price will increase or double from this value.