I would humbly propose you to read my article on this - we independantly came to mostly the same conclusions (there are some thing you mentionned that I missed and probably the other way around too
Iinnovations in altcoins/ (I am considering renaming it something like "Altcoins, Darwin at works" or "Altcoins, a Darwinian process", I don't know what would be the most engagin title)
You talk about the present (now altcoins should be
), I'm talking about the future. Of course, the opportunity to earn is the mainstream, but it will not develop the industry.