Bitcoin is decentralized and bitcoin can be used as the mode of payment in some business and also bitcoin can be used to send some funds wherever you are whenever you want,. bitcoin is increasing the value itself,
Bitcoin do not increase it's own vale by itself, because if it can do it, bitcoin will be having a great price even in it's first release. The value depends on the users of the digital currency, the more the user, the higher the value. The same with the price, the higher the demand, the higher the price.