Well, that will always be the safest option and action whenever you want to ensure that your investment will sure to get profit because we have already seen too many times that Bitcoin is always making to rise up its price whenever it experience downfall which makes it the most in demand cryptocurrency of all times. But the world of cryptocurrency is too wide to enclose ourselves into just one cryptocurrency. Although Bitcoin is enough because it is secured and you can assure to get profit whenever you invest into it, but there are also lots of potential Altcoins within the market that are worthy for investment. Maybe you can just put even 20%-40% of your total investment into the part of Altcoins and the major percentage for Bitcoin. We must take all the opportunities possible because we are in a vast world of cryptocurrency and Bitcoin is not just the only existing and potential cryptocurrency that is existing so we must grab the opportunity of exploring and investing into it as well.