[up_o]

To your first point, I think the cryptocurrenc[y|ies] that get issuance and control from a central authority right will in the end come out the most successful, as control of issuance lends itself to enabling modern economic levers any state may want to pull--for various reasons.

Of course there's an argument to be made that cryptocurrencies as we now know them will only ever have intended use as a secondary currency. In which case, fair enough.