I usually buy and hodl ETH rather than investing in altcoins. I believe that ETH has potential next to Bitcoin because most of new tokens are derived from ETH platform and is also has different and one of a kind technology. ETH has proven it's stability and importance in the cryptocurrency community and market. I used BTC in investing altcoins like ETH, LTC and DOGE because of it's higher price. It is better to hodl ETH now because the price is in dip.