There are many people who are against altcoins. They even say that ethereum is an altcoin. But there is one reason why people do start to invest in altcoins. Because altcoins has more potential to grow. If theres an altcoin who cost 1 cent at the ico the chance to get higher like 100x to one dollar is even bigger that bitcoin will got a 100x from 6000 to six hundred thousand dollars. But i also have to say there are a lot of altcoins out there who is not worth their value.