There are only a handful of websites that accept bitcoin. Imagine the day Amazon and Ebay starts accepting Bitcoin.
Today most of the value of USD is because anybody can buy oil using USD. The most of the value of USD is because it is a globally accepted currency. The day the world feels that they have a credible alternative the price of USD tumble.
Bitcoin mining has the potential to become individual contry’s pride and also having a say in International finance. The more countries joining the bandwagon, the stabler Bitcoin becomes.