But how did it get expensive in the first place? There was positive information which led to FOMA and worked as a domino effect and bitcoin appreciated in one or several days. This is indeed worthy of attention. Whether it is a problem in this case depends on whether you held on or sold before the appreciation. But it is my point that the problem is actually just one of perception. If you bought a bitcoin and transferred it for a good or service before the spike, that spike has not really hurt you. It may irritate you, but you paid a price for it that you decided was a good price for your immediate purposes at that time.