Yeah we should buy bitcoin at the time of low price and then better to hold with patience for long time, today bitcoin has started to increase but even now it is not very high still bitcoin has a lot of potential. I know the future of bitcoin is bright so we should invest right now and better save in wallet for coupe of years so at the end we will see a lot of profit and increase in price, investing in bitcoin is not a big deal but once if we will invest then it is very important to have patience and not to panic at any cost. In short we can invest any time but right now it is actually the best time to invest in bitcoin.