Activision Blizzards money-making and highly successful business structure strongly relies upon one main financial backbone, subscription fees.

The most prominent, World of Warcraft, has earned them billions, however, is the publisher/dev also looking at a similar structure for their upcoming release, Starcraft II?

Shown in the screenshot below, is an image of the Starcraft II Beta GUI informing a user they have ran out of "pre-paid gametime". A sad sight for fans of the Starcraft series, however, much has yet to be cleared up. Is this paid service the game itself, or an add on.

Only time will tell.