...There is also what is called hyper DCA, this method is a kind of pattern that one can buy bitcoin anytime and not with a certain amount of money, just like the way MicroStrategy buys his bitcoin. For you to know that he is DCAing is when you add all the bitcoin that he has bought together, and how many years he has used to buy them. This will give you the average price by month or annually...
It is difficult to imitate MicroStrategy, because we have already seen when Bitcoin was trading at $15000, their loss was equal to several billion dollars. And if the market had not started to grow from these values, we could have seen bankruptcy MicroStrategy.
Yes MicroStrategy method is not really easy for an investor to operate unless he has a lot of money but if you have enough money you can keep yourself with any method. Where profit becomes the main concern for an investor short term trading can be tantamount to gambling and risk of losing their capital but I think with Bitcoin your chances of losing will be very low whichever method you follow but long term holding can give high profit which observed at each time.