If you are looking for long-term gain then you can rely on this

$BTC $ETH are both proving to be reliable in the long-term despite Hard Fork's and regulatory issues for Bitcoin. If start ups do Ethereum based Token sales with already running operations it add more credibility. I foresee more credible ICOs and regulatory reform for both crypto currency (BTC) and Smart Contract (ETH). Thus, pushing the value of owning one of them up.