I think it's best to buy an Еtherium now. Bitcoin depreciates faster than the etherium, with growth - the etherium rises in price faster than bitcoin. Ethereum is a great idea to develop a blockbuster technology.Also with the help of the etherium it is possible to work with Smart contracts, which open up wide opportunities. Smart contracts can be applied in various fields of activity, from medicine to industry. Especially Bitcoin is an "economic bubble".".