It would be nice if there really could be an alternate & safe currency.
http://en.wikipedia.org/wiki/Bitcoin#As_a_currency
http://www.businessweek.com/articles/2013-04-10/meet-the-bitcoin-millionaires
http://www.guardian.co.uk/technology/2013/apr/11/bitcoin-exchange-halts-trade-value
http://go.bloomberg.com/market-now/2013/04/11/bitcoin-still-not-a-currency-and-now-crashing
http://techcrunch.com/2013/04/11/bitcoin-price-drop-caused-by-rush-of-interest-not-ddos-says-mt-gox-exchange-newcomers-now-opening-20k-accounts-per-day
There still seem to be some bugs that need to be worked out.
Central_banks are great for those fully immersed or at the top of the $Y$TEM, but for average people, things can be a lot tougher to become financial comfortable.
http://www.bis.org/cbanks.htm, http://www.investopedia.com/terms/c/centralbank.asp
Sometimes if you are confident & big enough, you can afford to take a chance & let it ride.
{"The 6-foot-5 Winklevoss brothers were unfazed. The brothers said they took
advantage of the low prices to buy more.
“It has been four years and it has yet to be discredited as a viable
alternative to fiat currency,” Tyler Winklevoss said. “We could be totally
wrong, but we are curious to see this play out a lot more.”}
http://ca.finance.yahoo.com/news/big-investors-emerge-bitcoin-gets-191114595.html