If a coin introduces a completely new technology that enables a different function and is sustainable in the long term, does it have the potential to be a worthwhile investment?
There is nothing new in this crypto that a new coin will bring that we have'nt seen before, we have had more and more in the past and they are yet to deliver all the promises they made, in short we are still dealing with insecurity, transaction speeds and decentralization, there is no coin in the market that has this 3 completely except they want to lie to your face, I repeat no coin in crypto market that has the 3 completely. Ethereum is secure, less decentralized and low speed, and has more investors as altcoin than any other coin will ever produce and still looking strong without any market competitors, because investors don't trust this new coins.
Have your heard or come across the word "diversify your portfolio before"? This is what real investors do, they don't put their coins in a single basket, they diversify their portfolio by investing into different coins because you never can tell the one that will yield more profits, doing this again will make you on the safe side because you also don't know the one that will fail at the end of the day, so it's always good to share your capital in different forms to be in the best investment risk.