That can't work all the time although it's the best ever, sometimes the price of bitcoin just continues to go up and you have the funds to buy, DCA can help you in that so you don't end up having to wait for months or years and that money stagnating from inflation. We can't predict the market so it's for the best that we adapt our strategies or just make more money in our jobs and save more extra money so we always have money when the price of bitcoin is low.
If you look at market conditions and the surrounding environment with income levels that are still the same as usual, I still want to run DCA rather than saving money in a place that in the end will not produce anything. Apart from that, there is no guarantee that money saved for months to buy something will last without being used, unless there is other income to support it when we need money quickly. So DCA is still powerful enough to be used to buy Bitcoin if someone still really wants to collect Bitcoin in that way from now on.