If you do not have enough funds to buy DIP, then I think it is better not to be attracted to DIP.
Every consistent and committed investor who continues buying for at least a cycle must surely buy dips, you don't need to be attracted to the dip to buy it, your periodic purchases alone would cut through the dip and you'll purchase it. Maybe you wouldn't have the extra funds to buy more at such dips, but it doesn't change the fact that you bought the dip.
Although I am not completely proving your point wrong, you could have been a little clearer in your statement. You could have mentioned the emergency fund and said that you can take the opportunity to buy dips by using half of the funds other than the emergency fund and refill those funds later. Emergency funds should not be used for this reason, because you bought dips with half of the money from the emergency fund today, if the emergency arises tomorrow and half of the money in the fund is not enough, how will you take action then? It will be very difficult for you to take action then and you may be forced to take the wrong action.
In accurate cashflow management, you'll need to prepare for any occurrence that's not emergencies separately, if you're interested in buying more Bitcoin at dips, then make it a variance of backup funds and keep saving for it until you arrive at your target dip and buy it. Meddling into funds kept for other things might see you at a disadvantage when those needs present themselves and you've used up funds meant for them to buy dips. It might even lead you to inappropriately utilizing your emergency funds, leaving your investment at risk if real emergencies shows up.