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Without decentralization there is no money. Might as well invest in liberty dollars.
I don't care about ideals or definitions of "money" versus "currencies".
All I care about is keeping the wealth that I've accrued and these "liberty dollars" have done a fine job of holding their value long enough for me to do just that. Furthermore, I see no law of physics that states decentralization of X as a necessary mainstay. As, during every period of man, the best bet is to diversify investments, because there's no knowing what the collective greed of humanity and its systems will allow to transpire.
If, for example, all the world's governments were to decide to make investing in crypto-currencies illegal, then I, personally, wouldn't want to be one to challenge their authority - call me a coward, if you want, but I value my life outside of bars.