I believe Ethereum has great potential in the world of cryptos. Its currently one of the best there is, in fact its only second to bitcoin in both Value and market cap, and out performs bitcoin in important sections such a the transaction rates, the technology upon which it operates is one of the best and it keeps improving.
The other reason being is that there are a lot of good projects getting built on Ethereum as a platform. This has resulted in the diversification of Ethereum's presence in the market. Because of this, its value will shoot in future, thanks to the the number of ICOs launching on its platform.
Fingers crossed, if any of the project becomes popular, hold this coin till that time and you will no regret.
Cheers!!