Not all the time that when the price crashes it would be time to buy because with this current bearish market performance that if you buy the dip but it dips even more losing your investment. I suggest that we should observe the market more while holding our assets until the performance looks like stabilizing again.
By dollar cost averaging your entry points, you effectively counter the risks of the price going down further. These are the times that people should be buying, and not when the market looks like it's going back up again.
I'm thankful for the opportunity to buy any amount below the $6000 mark, and if it falls more, I'll buy more, it's that simple. The lower we are, the more likely it is that the bottom is near. In other words, pretty low risk exposure.
People usually buy the wrong dips, which is why some are reluctant to consider price dips as a good opportunity. It's also a matter of common sense at the end of the day. Buying the dip from $19k to $17k is suicide, not an opportunity.