as for me, I sell my alt-coins only after that, when there is good growth, and I sell it very profitably, until this moment comes. I keep coins in my wallet, and I try to buy more coins in order to make more money, today I found a very promising project @ swachhcoin. The project will pay people for their trash. At the moment there is a bonus of 12.5%, you can buy coins by the end of October. I advise you to see the project.