Whatever you explained is so true that you dont even need to think about any other special strategy to invest into the crypto currencies and then earn the profits. The best way to do is hold your tokens and specifically the bitcoin is master of all and holding it can benefit you a lot. With the time as you stated the bitcoin value will keep rising and climbing upwards because thats the very nature of the bitcoin and altcoins. In here, the supply that have been created is very very limited except to those which are centralised coins. Thus, with the time demand is gonna rise and thus supply will go down and at the end, huge pumps will start going our way.