For a normal investor, and by normal I refer to someone who doesn't have any particular financial skill (like myself ) I think the DCA strategy is one of the best things out there: you keep investing every month, you know you won't be wasting that money buying useless stuff, and if the market goes up you're happy, if it goes down you're happy anyway because you can buy more BTC investing the same amount of money. No stress, no margins, no need to check the price every 5 minutes, I like it.