To be honest, if someone has money to invest on the market then it's best to do a lump sum so that you won't have any emotional barrier upon doing that. Why I said that? It's because when someone is trying to invest on Bitcoin during the dips, the investor might feel that there's gonna be another fall and there will be some delay of investing due to the fact that it might fall lower again upon waiting. Yes, DCA is a good one but with that kind of money, and you know that it is the dip, you have the choice to buy it on the lumpsum for you to just spend that money away to the market and you only have to think about waiting.
Normally, investing at once is better than investing from time to time because the price will not be the same, which makes some investors confused, and when you want to sell, you may lose some and gain profit. Since you bought it at a different price, Although this kind of strategy is for people who have enough money and are ready for a long-term investment, you know, as someone who only has money to invest and not that much, I think DCA is better because that is the way he will understand much better and how much he has invested for the time he spent.
Also, for people who have little knowledge about bitcoin investment, DCA is also the best for them to avoid confusion. Furthermore, I can tell you that investing in dips makes someone panic; they don’t really understand the concept since you know that when dips come in, it takes some time before it bounces back and starts seeing positive changes.
Some of these kinds of things make some investors feel the emotional barrier you are talking about. Not all of us are ready to see dips; most investors want to invest and start seeing positive change in the market, which is not going to be as possible as some people want it since this is something we know about and we legally know it will happen, so we have to wait till the time comes.