whats the deal with blizzard and starcraft 2 being made free to play ?

it says first few missions are free and multiplayer is free so did i waste my money? go here https://us.battle.net/account/sc2/starter-edition/;jsessionid=D66379896D7B8E10A068B7AD4BBBB48A.blade34_03_bnet-mgmt

No you didn't waste your money...it's just a "demo", nothing was made free to play.

This is all it's got:

• The first four missions of the StarCraft II: Wings of Liberty single-player campaign, including Mar Sara 1-3 and the choice to embark on Tychus's first mission or Dr. Hansen's first mission.
• The first two Challenges: Tactical Command and Covert Ops.
• Access to the terran race in Custom Games and Single-Player vs. AI.
• Access to the following custom maps (map selection may rotate over time):

• Xel'Naga Caverns
• Shattered Temple
• Discord IV
• High Orbit

As for Custom games except those 4 maps, starter can play on the Blizz mods, Left 2 Die, etc.

blizzard should be ashamed, the 4 guys making this "demo" could have been helping finish Dialbo 3 for xmas, SHAME ON U!!! :P