ETH specifically is a good investment right now. Hitting ATH after ATH and setting new highs for us. Getting real close to 2k per coin. You dont want to miss the pump.
If hitting ATH after ATH makes something a good investment, then almost every coin on the market now is a good buy;) Just remember the craziness of 2017 and don't make the same mistake.
Not saying ETH is a bad buy at all, I actually think BTC and ETH can't go wrong long term, but you never can truly say they're good investments just on account of ATH targets.
Yeah, 2017 reminds me always that we don't be confident enough that in the next few days, the market still in a growing position because it is possible that it changes direction. Who knows actually.
Thus, if we are investing ETH or BTC, it is our guts. They are running so high and the risk is there. For me, I have to consider other altcoins which is not yet started to grow. This will have the potential rather than those already at the top.