If you have the intention to sell ethereum that you have today, I think you might be wrong because the possibility is very far if December 2017 is around $ 800 more or less if it's not wrong, with the current price of $ 204 more or less you will suffer losses great if you want to sell and reinvest ethereum with other coins, my advice is to hold it first, it's a coin, a good investment for you just need to choose yourself so you are not disappointed, because people predict different coins. .