Keep in mind people, were on a four year logarithmic up trend of 1000%/year, when we hit the bottom elbow of the technology adoption S curve, it's going to go straight up and anyone sitting in fiat risks missing it just to get a few cheap coins.
It doesn't really go vertical literally. Its just that the rate of increase is not linear, there can still be ups and downs through the "vertical", just not large ones.
maybe maybe not. the point is, you risk missing the train. The longer you wait to get back on, the more expensive the bitcoins.