I agree with you that buying now is a good thing to do and it can become profitable. But I will prefer to advice people to DCA instead of buying at once. I advice some people to DCA in a a way that if bitcoin fall to a price, that they should buy more. They have been doing it since bitcoin fall to $90000. It is something that has been set on the exchange as limit order. DCA is a good thing to do.
DCA is very good because it smoothens the effect of volatility on your investment, however it's also cool to buy dips when they present themselves if you've extra cash. Dips are opportunities to accumulate more coins at cheaper prices, if an investor can maintain his DCA while finding ways to save differently for buying dips, maybe a dip can be an asset for him to purchase more quantities and keep drawing closer to his accumulation target while still maintaining his consistent buys with DCA.