If you're giving the opportunity to take small profit for 2-month investment or take a very huge profit for a 1-year investment which, would you prefer? Of course you will choose the big profit, and that is why people see the idea of selling Bitcoin when there is a short increase in the price of Bitcoin as a bad idea. Only hungry or hasty investors are willing to take quick gains, if one wants to rich and wealthy then investing a lot in Bitcoin and holding it for long so that the return will be massive will be their ultimate goal.