Well, that was pretty short. In my opinion, it's better to put hardforks on Bitcoin and solve the issues that it may have than to go creating new cryptocurrencies to "substitute" the one that is already on the way to improvement, to become what we really want.
Otherwise, we'll be promoting eternal branching and weakening of each cryptocurrency that we want to support and that will probably end up in many of the concepts dying from weakness in the face of other stronger cryptocurrencies that may not