I would rather buy BTC and ethereum when the price is bud, waiting for the upward spike and selling it
Bitcoin can be a good buy currently, but I dont think ethereum is a good buy and will increase like other crypto currencies. The reason I dont trust ETH anymore is that the government of many countries have either banned ICOs or have made regulations on them. Moreover, the social medias are taking action against crypto currencies by banning advertisements of ICOs and new tokens and projects. Therefore, for a smart contract platform like ETH the number of ICOs launching has reduced and so we havent seen much growth in price of ETH.
Good reason but after Bitcoin, next ETH is the major coin in all cryptocurrencies So i think ETH also grow fast once BTC takes charge. we have other altcoins to buy in this dip for example NEO, NEM, IOTA, ADA. you can try these coins. I am not buying high price coins I am concentrating only cheap price coins.