Bitcoin is and always will be very volatile, but this does not mean having to give up his purchase. If you look at the chart of growth rates you will see that every year the price of bitcoin is increasing. This trend will persist for a very long time so you can buy it at any time.
First thing to look up on Bitcoins votality is its system itself. We all know that Bitcoin follows the stand of the principle of law of price and demand. And the inevitable changes, brought by the development which could be the best thing for people to invest becasue it is the reason why people invest to bitcoin becasue there is always a possibility to earn and to have a profit.