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I disagree with your statement because those investors who are accumulating bitcoin with the DCA strategy and also buying the dip will always accumulate more bitcoin than the investors who are only using the DCA strategy to accumulate bitcoin. Just because they are waiting for the dip doesn't mean they will stop accumulating bitcoin with the DCA strategy; they will continue to accumulate bitcoin with the DCA strategy. They have already kept the money to use to buy the dip; they are just waiting for the dip to happen so they can buy bitcoin at a low price.
You only advantage from holding money aside to buy the dip if the BTC price actually dips. So how could you always advantage from buying the dip if the BTC price does not end up dipping?
Sure in the end, guys can do whatever they like in terms of figuring out the extent they might be advantaged by holding some money aside to buy dips or just to buy BTC regularly no matter the price.
This idea of waiting for the dip can really destroy your months or years of investment plan. Let take for example you have been saving for months or years waiting patiently for a dip to occur so you can accumulate Bitcoin and it took months or years before a dip happens and within that time of waiting with already kept funds in your Bank account you used it with the hope of replacing before the dip happens and to your greatest surprise it happened when the money is not yet replaced this will really frustrate you and I don't think you will be willing to continue.
And again waiting for a dip can make you lose interest on Bitcoin investment because it might take a long time before it happens.
Making a clear point, in a simpler word "Dip does not present itself", implying we do not when price would Dip. That is the case, at times before we become aware that was the dip price, price has pump upward...when we think the dip price has occurred we can then see price dip more.
So it is a game of chance because it never presents itself.
In essence we just need to keep accumulating Bitcoin according to our suitable strategy building a solid Bitcoin portfolio rather than slowing the process because we are expecting dip prices, i believe any investor that is disciplined with his DCA strategy surely will buy the dip without his own notice because he is present at intervals of the Market.