I really don't get this whole "this coin is shitcoin, that coin is going to take over" talk. If you are talking from a purely speculative point of view, maybe it is. But competition is key in a healthy economy and there is much more to cryptocurrency than its sheer USD value. A lot of alt-coins solve some problems bitcoin has and therefore, puts pressure on bitcoin to become a better coin. Bottom line is, there is no silver bullet, different problems, different solutions.