One potential reason Bitcoin has continued to increase in value is the stability of such a currency. It is based on a solid set of mathematical equations that govern the generation of the currency and significantly limit the ability of the currency to be manipulated. Based on these equations, Bitcoins are generated at a predictable manner through the execution of code distributed throughout the network. Therefore, Bitcoin does not suffer the same inherent stability plaguing the US or European currencies of the day.
Based on the escalation of the value of Bitcoin the current market capitalization has now cleared $643,000,000.00 and looks to beat the $750,000,000 dollar threshold within the next few months.