The new coin is always a risk, we should always choose the old coin which has completed their product, old coins will have higher chances to increase their price along with the Bitcoin price. If we are looking for long term investment, we should leave them until we make some decent profit. Choosing wise coins will always help us to learn new fundamental analysis about the coins.
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.
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