Of course I agree with you that anyone who is waiting for Bitcoin to dip to his expected price may never buy because of the volatile nature of Bitcoin, because it may increase when expected to buy low. And talking about making good strategic decision in the text I bolded, of course that will be making sure you invest through weekly DCA or monthly. And making sure you don't invest above your discretion, you should be able to mitigate the use of your discretion in other not to slack behind in terms of misusing your discretion. I believe in "no discretion no investment" so the only strategy is to manage your discretion in other not to used the inappropriate and sell you Bitcoin down the road.
I agree with you, and I'll also want to mention that beyond Bitcoin volatility, money is a moving material, if it's proper utilization is delayed, might flow into something else of less value. Delaying your Bitcoin investment because you're waiting for the dip, is a wrong decision for someone new to Bitcoin because he's prone to entertaining a trading mindset if his intention and target price ends up playing out for him, or worse still something else might come up and take up the money budgeted for investment and his investment plan would be abandoned. If the price target does not play out, he might still be waiting and be left behind as Bitcoin price continues to appreciate.
Such an investor would recognize his errors when Bitcoin price goes much higher futuristically and he'll regret not buying earlier and such bitterness may lead to not investing in Bitcoin anymore.