This is the age old question whether it relates to crypto or to traditional stocks and shares. When people find themselves in profit they are in profit on paper only, it does not become real unless they make the sale to profit from their investment. I am sure we all are familiar with the notion if you sell too late then you get less profit but if sell too early you might regret it. I suppose it all depends on your own instincts.
So with the recent spike in BTC price (and other ALT coins) when is a good time to sell?