At this point in time, I can't really tell which is greed. I have these coins which I received from bounty years back, if i had sold all at then, maybe the profit would have been better, but now the price of all the coins are down and my holding are more like nothing available, recently the price of the coin(s) are making a little increase. I have not sold, having the thinking that the price will go higher and due to the high gas fee, am still holding, cause if I am to withdraw, my profit will be just a little above gas fee.
If the price of a coin hits the satisfactory point which you think you have gotten a good profit out take, just do it, or leave a few fraction or half if you think the price will still make a rise.