DCA will help you be disciplined when you buy more units, when the price goes down and less when the price goes up. This will make it easier for us to make investment decisions and avoid emotional decisions and one more thing, never ask for advice/references on the Internet, because we run the risk of being scammed and that's not what we want, right?
So the question here is are we ready to carry out the DCA strategy and be consistent, regardless of rising or falling prices, regardless of economic conditions?
Although I can't tell how much money anyone has in reserve to keep on accumulating their Bitcoin, if one is consistent in accumulating Bitcoin, depending on how frequently they buy, maybe daily, weekly, or monthly, I think there is a limit to when the BTC price will fail, and you will just have to drop the DCA strategy first and just buy up enough fraction of Bitcoin with your reserved funds (depending on what you want).
An example of what I mean is that, let's say you have up to $8k and you wish to buy Bitcoin with all that Capital, but you keep accumulating weekly with $200 and you believe that Bitcoin can go down to $25k, but instead of the $25k, it falls to $22k. At that point, instead of still continuing with the DCA, you can just use all (or 90%) your remaining capital to buy up Bitcoin at that price because, as you can't tell, the market can also take a big spike from the low price that it fell to and jump to a high price. Perhaps the market is always volatile.
So, all I'm saying is that there's some low price you will experience, and you might just let go of DCA and buy up at once, because definitely buying at that low price will still earn you a lot of profit if the market begins to experience a bull run.