There are many altcoins on the internet and each of them has different advantages. All advantages do help people a lot. Ethereum provides people smart contract which can create a reliable contract between people and people. It can be used a lot in the future but right now, they can only add it in ICO. Litecoin has the super fast blockchain which is called lightning network. It is super fast while the fee is still comfortable. And in the conclusion, you have to know that they have 1 same advantage which people like a lot: profitable. Investing your money in altcoins can give you a great amount of money after months.