When investing, Im a big fan of diversification of portfolios. I believe that both Ethereum and Bitcoin offer value, albeit in different ways.
Even though Ethereum is positioning itself to become a large platform, the fact that Bitcoin is so well known makes it the first place where people invest.
It is better to have it both, bitcoin is widely known all over the world and even out of this earth had known this. Ethereum is the best altcoin and I will keep on eye on this then I will invest my money there. My goals are to make more money with bitcoins and other altcoins. These two crytpocoins will compete in the coinmarketcap and we will see which is the best coins for holding.