Showing an ungodly lack of understanding of the idea of floating currencies.
Seriously. It's worth what people think it's worth.
That's why your currency goes up and down on a daily basis. It's not that your country gets more or less gold, it's driven by consumer confidence and demand (or lack there of) counter balanced by availability.
Bitcoins are worth money so long as their is a demand for them, so long as people think there is a demand for them or until governments start trying to legislate against it :\
Indeed. The point however is that it's actually worth **** in the event of a catastrophe or financial crash. Having Coolboy Obama "backing" it is also worth a **** in the wind. Money is essentially faking it. A promise not a guarantee.
Some things however, at their base, do have a value.
Not that it would probably matter much, but if the government/society was destroyed by war/natural disaster/financial meltdown - the guy with $1,000,000 in "money" at the Bank or the guy with some gold bars under his bed. Who do you want to be?