The only place I think altcoins has a future in is gambling, normal gambling but first and foremost e-betting.I can not see how it will take over from normal currency's in the world of buying or selling any other goods then btc. The main reason I think this is that nobody wants to be that guy that bought two pizzas for 10000 btc 5 years from now, so i cant really see what else it has a real future in. But that is only my opinion, What do you guys think?
Altcoins are going to be used in the same way that they have being used as of right now which is to speculate with them, do you really think that people really care about all of those new coins that are appearing? They don't, they only want to obtain profits with them by buying those coins at a cheap price and then selling them for a very high price.
But such strategy does not come without risks, as we know for a long time that strategy has been not very profitable but that doesn't mean that people are not going to keep trying to make it work during the next years and decades.