I dont think ETH will reach bitcoin price, in my opinion bitcoin is just too mainstream to get dethroned for the most expensive cryptocurrency category. One thing i believe on though, is that in 2018 Ethereum will rise more percentage wise than bitcoin, so that being said, in my opinion you will make more money if you have your money on ethereum than if you have your money on bitcoin.
Yes, i also think that Ethereum can't beat the price of bitcoin in resent some years. Ethereum price is too low then that of bitcoin. In this time Ethereum price is approx 300$ and bitcoin price is approx 6400$. Ethereum has the capability to beat bitcoin popularity. Its less volatile nature attract many investors for long-term investment purposes. Ethereum is also accepted by many multimillion companies which makes its future safe and brighterand also help it to increase its market price.