NOT always greedy. If you are holding this means you are waiting for it's future implications in the real world. You are the real supporters. Although it's rise in value will make you some good money. If your purpose is to make profit then proceed smartly.In crypto, holding can be as short as 1 month and even long term period can be made  but for this you should be focused on the events news on what's going on. By this you can make nice profits.