I think this has been the case some months ago with ETH and BTC. But I really don't think ETH will work out as fast as BTC is now. BTC almost doubled its price which proves to show that BTC is really getting more and more famous. At this moment, I can say Ethereum is a good alt. Active Dev, further developing technology around Ethereum. But what concerns me is it's value, many say it's overpriced due to the price increase with no valid reason but due to manipulation and that it will crash soon