You will get an equal chance to win one of the following random rewards on each dispense.
The actual amount depends on your luck.
Bitcoin is the most well known crypto currency, it is an innovative payment network and a kind digital money. Bitcoin uses peer-to-peer technology to operate with no central authority or banks managing transactions and the issuing of bitcoins is carried out collectively by the network. Bitcoin is open-source; its design is public, nobody owns or controls over Bitcoin and everyone can take part. Through many of its unique properties, Bitcoin allows exciting uses that could neither be covered by any fiat currencies nor any previous payment system. [From bitcoin wiki]