The booming period for ICOs has passed, so ETH is having a hard time attracting investors. I think ETh will be stuck in the long run and very difficult to return to the $ 500 price.
Be careful if you want to invest in ETH.
Due to the fact that investors before in 2017 are placing their assets to eth blockchain's cryptocurrencies, right now, you are somehow correct but Let us not forget that cryptocurrency is very dynamic, there's still room for the price increase, lets think about trading, even though there are no projects which can be considered profitable, there are trading sites or exchanges where the market price is built.