What a holder needs to understand is that the more Bitcoin he can hold, the more returns he will get. Everything here will depend on the amount. If a holder deposits $100 per week through DCA regularly, then his annual Bitcoin holding will be $100*52= $5200. If he holds it for at least 4 years, then $5200*4= $20800 and if it is spread over 10 years, then its amount will increase to $52000.
Investing in the DCA method does not require you to purchase the same amount of bitcoins every month or every week. The goal of this strategy is to buy bitcoin regularly, buy it immediately, buy it with as much as you can afford. What I mean by this is that one of the major holders of Bitcoin today is microstrategy, but they regularly buy Bitcoins, that is, their investment method can be called DCA investment method. They are regularly buying bitcoins but their bitcoin purchases are sometimes low and sometimes increasing i.e. they are buying less bitcoins at one time and more bitcoins at another time. As a result, their Bitcoin buying spree continues.