I think this is right time to buy a bitcoin because the price of a Bitcoin is down and we know the price of bitcoin will rise in future because of people investing and bitcoin will popular ....
Exactly you should not really wait to buy or invest in coins right now because we are having the price of Bitcoin on the rise right now and if you wait, the price will rise much higher and the cost of investment right now will be low than the cost of investment after sometime. So it is better to invest right now. Besides, one should have a diverse portfolio to have a good profit margin in future.