(And of course, if I can pay my taxes and mortgage, how can anyone claim to have removed the central authority from money? Just like the gold standard, nothing would prevent a government from changing its mind about whether or not to accept Bitcoin for tax payments.)
Like I said, if you already believe that money can exist without a central authority, Bitcoin simply serves as validation. Otherwise it does not really change anything, because if you accept mainstream views of money, then the premise of Bitcoin makes no sense at all.
You think Bitcoin is a decentralized store of value? Tell that to all those people whining about the Mtgox bankruptcy proceeding, which is being resolved by paying for the lost BTC according to the price in Yen at the time Mtgox declared bankruptcy which is a tiny fraction of the current prices. When push comes to shove the "value" being stored is measured in fiat currency, with all its associated central authorities.