I been riding this roller coaster for over 10 years. You buy the dip an hold. I am not a Whale so I can't drop 500m in ETH to change the value, but what I can do is what for that to happen and buy and constantly be increasing my pool. IF you look historically you will see that is how it goes in an almost predicable way. So yes, you ride down and buy along the way and wait for the rebound, but don't sell, it this has happened many, many times.
Everyone says the Floor was 50k for BTC, well I always look at the "Floor" as like one of those Chinese man-made Islands or Disney-Land built on a swamp. It is a floor, but sorta squishy. lol. sometimes the floor drops and needs more dirt/infill(money) to stay up.