With all the good news coming out in favor of bitcoin like
Expedia accepting bitcoin etc it's time to buy with the price going down. You will not be so lucky next week. I strongly believe it's going to reach $700 by end of next week!
Yes , It is true. It is the perfect time to buy because the price is low. if now you buy and hold for several time i'm sure you will get more profit about 4 months again.
There is no such measure or technique which can help you out in knowing the perfect time for buying of any of the crypto coin and that there is nothing like that. It is you who needs to analyses the situation of the market in the best possible way and then you need to make some good decision at the end by keeping all the necessary things in your mind. Buy only when the market values are falling and the rates are little low.