There are plenty of altcoins that would have made a huge profit if we invested into them when they first came out, however there are so many others that just fail. I know that this is just high risk <> reward, but is there any useful tips to make a decent guess as to if an altcoin is worth investing to when it is released?
there's really no technique unto knowing whether it is worth the investment. Investment itself is a risk plus, the market fluctuates from time to time so you really cant tell the outcome. The only tip I can give is to gather as more info as you can regarding your investment. Read reviews, recommendations, legit articles, forums and ask advises before investing.