Inasmuch as most investors that are financially capable may likely be nterested in buying Bitcoin at once than buying by parts I still believe there is still need to know the best strategies that will be more favourable because if one is equip with the right information it gives more confident and determination to make more significant investment.
DCA strategies is more leverage to accumulate Bitcoin and I think most investor will consider it more preferable.
You are getting the whole point wrong. Investors that has the money to buy Bitcoin once should do it because that seems to be the most favorable strategy to them. They can still choose to DCA, but rather they will increase the amount of money used to DCA per week or monthly however they choose to do it. The path you misunderstood this things is that all strategy is preferable based on each investors. And this is determined by their financial capability first, financial goals in the investment and their risk tolerance. This three importance things are what investors consider first before they adapt any strategy.
And mind you DCA can be adapted by all level of investors both the rich and the poor. But Lump sum is rarely adapted by the poor. Obviously they do not have the money t buy a whole Bitcoin once that's why they stick to DCA. But a rich man can DCA, Lump sum and also buy the dip because he as the money. He might just preferred to DCA because he wants to manage risk learn a few things instead of Lump sum.