Yes, altcoin is really worth investing. With their potential growth, it is sure to give a lot of profit in the future. Also, with the price of altcoin being cheap or affordable, we can easily invest, hold and wait for the market to recover.
Now is a great time to invest in Altcoins. many of them are in a very good position. I advise buying now and waiting for growth
Buy only those coins that has a good development because not all altcoins will prosper in the future. ETH is now undervalued which is a good option.