Are ETH coins worth investing in? Are there other crypto options worth investing in apart from Bitcoin?

I wouldn't dabble in Alt Coins but I feel its good to diversify within the "Blue Chips" of crypto. This was posted a while ago but even given the current trend, I would still feel its good to diversify your crypto portfolio and not only focus on BTC. As you can see from the chart, despite the minor correction by BTC, ETH has still been doing very well. I guess BTC may be slightly over-hyped?

While options are plenty in the cryptocurrency space, many are very much speculative in nature. Almost all the coins except for BTC have only exist for a very short period of time- there is simply no enough data to even determine their performance to get any remote idea of their sharpe ratios. And yes, that even applies to ETH too (though ETH has a bit more history than most other coins). Check this twitter post out (https://twitter.com/woonomic/status/13130998140...)

Personally, I'm of the opinion that BTC is probably the only one worth investing for now (given the amount of data we have about cryptocurrency market). Even so, it should just be a very small part of your portfolio.