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?