Should those who want to buy more do it now or do you believe we'll see the bitcoin price get down a little more?
I'm not really asking when to buy. My point is that this might be a good time to buy more BTC.
This is pretty much implying about when to buy mate. You are asking you should wait or not then what are you trying to do then if it's not about that?
Your best time to buy is always now if you are trying to do long-term hodl because of the Bitcoin's nature of price movement if you know about Bitcoin for quite a long time. But if you are into short-term trading then the price is surging quite a lot and you may need to wait for a little bit until halving because the price could get affected by this.