Yes I always buy when the price drops sharply.
You should at every drip if you have the money. Bitcoin's price will increase a lot in the future so buying at any price makes sense but buying at low points mean you will easily make a profit. It can also take a long time but buying and holding is a good way to make a profit.
If you have the budget to buy when the price dump it is good for you to consider but it is not always necessary for us to always but when the price dump because there is also a possibility for the price to continue the dump or the price drop so it is better to analyze first the changes so you could limit the loss you could deal with buying or a part of trading transactions.