I decide to sell my coins when I think I got the target price and I will earned from it, so I better check the price always.
To me i still do not have any tarket for bitcon selling, i am only holding my bitcoin which i have bought a year before, and still will continue holding it for next few years, because i am very much conrfident about bitcoin wihich is going to be our main currency in future, that is price will continue increasing and will surely give us a very good profit after some time.