what underlies you to buy bitcoin under $ 3k? why are you so sure the price of bitcoin will drop below $ 3k? the price of bitcoin has been stable for a long time at a price of $ 3,500 and in my opinion it is unlikely that it will drop below $ 3k.
People are talking without backing up their words, that we definitely have seen in the last months and even weeks. Literally nothing prevents the price from falling below the $3000 mark, but that's not even the main issue.
People stating that they will buy below $3000 will most likely NOT buy if it does happen to drop below that level, because they'll be waiting for $2500 to be reached in order to start "buying".
At $2500 they will wait for $2000, then $1500, and so forth. If you don't dollar cost average your entry points at current levels already, you're not a serious buyer, period. Those who are waiting won't pull the buying trigger.