It is difficult to say to someone you should invest now. What if he falls again, what if the price goes up and you don't buy it? It is a quite good price for a Bitcoin now for buying, but if it is the best time, I don't know. Nobody knows that. For me the best time was when it was 20 dollars don't you think? You could have bought them hundreds of them...and you would be a different man now, never have to work again in your whole life...that was for me the best time to buy Bitcoin.