Keep your ETH, it currently $200, it will grow to $600 in hear future, when btc go back to its all time high or reach a new one. That already mean you got 3X return.
If you like to invest, spend 1 ETH in NEO which is also a very good coin, it has been down a lots so, large room to grow.
If you like higher risk, higher rewards, spend 1 ETH on a coin call Privcy and airdrop community coin, if you know the famous DeepOnion airdrop, you will know Privcy will be at DO level or even higher some day.