Altcoin prices are currently very cheap so when you talk about altcoin investments at this time it is very profitable but it's better you can buy an altcoin that has good movement and has the potential to be very expensive. for example altcoin XRP, Ethereum, XLM and others.
Yes that's right, the current state of Altcoin is very cheap on the exchange market, so if someone asks if Altcoin is worth investing? the answer is right, Altcoin is a Cryptocurrency based on the Blockchain, but they have their own networks like Ethereum and other Altcoins. So it's worth the Altcoin to make an Investment, to choose a good Altcoin for investment, choose an altcoin that is in the Top 100 Coinmarketcap list.