As we all know, ethereum is in second position under bitcoin. I think ethereum will not be able to replace bitcoin positions, given the price, volume and bitcoin fame is greater.
maybe the future of ethereum will be more than bitcoin.
Yes ethereum is next level of bitcoin. So most of the people use the bitcoin for the future saving and ethurereum also use the future purposes. So hold the both of coin and wait for the price increase. Then use it. Before buy and sell. you know the price information. So market place is important of the bother coin future process.