Blizzard, in an official press release has announced a new pricing option available in Latin/South America where people can "test drive" the game for an equivalent of about $29.00USD for 6 months.
“
One of our design goals for StarCraft II was to make it accessible to a wide range of players, from novices to veterans, ... The same applies to our pricing options - want to make sure our players have sufficient flexibility to enjoy the game according to their own preferences and styles of play."
” -
Mike Morhaime, CEO and cofounder of Blizzard Entertainment.
Blizzard aims to provide less "hardcore" or newer Starcraft gamers a chance to get an idea of the gameplay, for about half the price. This 6 month "subscription" to Starcraft 2 is currently only available to Latin/South America. Pricing is roughly as follows: Mexico: $299 MXN, Argentina: $119 ARS, Chile: $13,900 CLP.
Though for most Starcraft 2 gamers out there already enjoying the beta, the best deal would easily still be the $59.99USD full version of the game.
Links
Blizzard.com - Press Release