I did research but I wanted to get information from other people and then made a decision. I guess I have a different understanding of what a forum is.
Yes Altcoin is totally worth to buy. Altcoin like Ethereum, Litecoin make an impressive progress on cryptocurrency market. And these coin are heavily accepted for various market purposes like trading, shopping or for paying rentals, EMIs etc. Altcoin are accepted by many multimillion companies for their business and for various projects and this thing help to increase their market popularity and this thing ultimately safe their future too. Ethereum market price and stability is good for investment purposes where as litecoin is good for transaction purposes. So i thing they are worth for buying.