Sounds so simple and so great in theory, but good luck getting the typical newbie “investor” to do it successfully; as if we would know what the price floors and price ceilings would be.
For most people — assuming they actually know what they’re investing in, the ever so simple buy and hold is the way to go; while looking for ways to increase cash flow in other places outside crypto.
I agree with your statement- I mean, it is definitely easier said than done especially if you are an investor who invested large quantities of capital in BTC. In this case, the slightest movement of price, whether an increase/decrease, could mean a gain or loss of thousands to millions on your part.
Though I do agree with your point, it is still essential that you recognize the goal behind your investments. If you plan on HODLing your investments for long-term, then better purchase now while the price is bearish. If you plan on focusing on short-term gains, hence, short-term investments, then I really suggest to purchase only a handful of BTCs and trade them once the price increases.