Eth is no doubt one the best long term investments for the long term taking into account the value it brings to the cryptoworld . At the moment it is going high & should cross $500 soon and then return to stablise around $430.
But in the long run, it one of the best coins after Bitcoin.
Exactly Ethereum is one of the most stable coin in the market. There are so many coins based on ETH. Price rise of ETH is slow compare to BTC but i think ETH is the only coin that can overtake BTC. I am not saying that it will but as of now it is the only coin that can.