New coins are the biggest risk and the biggest potential profit.
It's almost like a bet with high quota. You just don't invest a lot in it but even a small investment could give you big profits.
And you won't lose much if it fails.Check IdenaNetwork
idena.io while you're at it.
Only if you invest a small amount, like pennies. But in investing, you'll mostly invest with higher amount so that you have the chance to earn big and there's no guarantee on it. I will encourage others to invest even if with small amounts just to take the high risk.
It's better to invest with knowledge although the amount you are investing is small, that can minimize the risk as you invest.