There surely are trade-offs for any newbie who gives any shits about buying the dip rather than just figuring out ways to buy bitcoin persistently, consistently, ongoingly, regularly and perhaps even aggressively for 1-2 cycles or longer or maybe until they reach overaccumulation status.
Buying the dip adds a waiting component for something that might not happen, yet there still can be ways to buy the dip with a bit of reason and as a supplementary strategy rather than as a main strategy.
You are absolutely right. We know it is not always easy to catch the dip perfectly, but planning, setting orders and being patient will ultimately bring many results. Those who can do this with patience will get something good. However, no one can do perfect timing, so I think buying in small portions and placing orders at low prices are just strategic decisions.
The most important thing here is to have faith in your strategy. Those who move forward slowly with faith can gradually gain experience and profit over time.
Am not a big fan on planning a strategy on buying at the lowest depth or doing some analysis when accumulating Bitcoin because is sees it as a waste of time and energy, because Bitcoin is till very cheap now, so why wasting time in analyzing or doing one or two things thinking that you can buy at a low price, the set of people that mostly do that are traders, because they are chasing short term gains, not Investors like us that knows that their is a higher probability of Bitcoin going to a million dollar in the future, so if you can buy it at this present rate, it's a big bargain price, so why analyzing or planning a strategy when you can just buy anytime your discretionary funds is available?
If we can all approach Bitcoin with a long term mindset, you wouldn't even see any needs to be analyzing or planning a strategy on buying at the lowest depth, as your discretionary income is available, just buy and hold, in the future, you will be happy that you wasted no time when you should have acted.