You might be right, but sometimes the "retracement" does not end up coming, and so maybe it is no BIG deal if you were already prepared for UP at the end of September when BTC prices were in the $26ks and $27ks, but then if you think about it, we have largely had Upwards BTC price moves and no significant and/or meaningful retracement, so far.. and whether such retracement comes or not is not exactly high odds. Maybe it is 50/50? And how BIG of a retracement would you like to see? 10% or more?.. 10% only gets you down into the $33ks .. so would that be good?
When we get to a new high that has not been recorded for long time, like we moved from $33k to 38k I would wait for a retracement in the region of $35k before I add to my holding. But if we don't get back to $35k and move from $38k to $42k I would wait for retracement in the region of $39k It has been a strategy I have been using for long and it has been helpful to me. You know we cannot rule out a possible retracement. What I don't like is buy the top of the month.
If what i use here as a technique is good by me alone as from what i can see and it all works for me the better, i only invest using DCA, this helps me getting my portfolio pilling up till i see that I've gotten enough that is so close to the last all time high of $69,000 then i many decided to wait and hold onto the ones I've Invested, waiting for the bullrun to come and i make my profits then also reinvested.