Yuvster makes a fine point.

The best way for Blizzard to get continuous revenue is to charge for name changes. They are already doing it for WoW so they should have little problem integrating it into SC2.

This is exactly why Blizzard will never make SC2 multiplayer free to play. They've spent the better part of the last 2 years (since WoL's release) to balance the game, and F2P will just mess everything up. In fact, don't bother calling it "free to play". The more appropriate term is "pay to win".

Just think about why Blizzard is having difficulty integrating PvP into Diablo 3. RMAH, that's why. People who have money to buy stuff gain an unfair advantage over those who do not pay for anything.

On the other side of the coin, there may be possible advantages:
- more people will try to pick up the game, because there's no cost to do so
- (ok, I spent over 10 minutes just thinking of another possible advantage, but I just could not think of any, simply because Blizzard and the SC2 community does not gain from making SC2 free to play)

More people picking up the game may actually be detrimental to the community: More trolls and more smurfs.

The "free to play/pay to win" system will not make the game better. Blizzard will keep everything as is. They take 60USD from our pockets for WoL, another 40USD for HotS, and possibly another 40USD for LotV. Do you think trolls will spend 140USD for another SC2 account just to troll the ladder?

If Blizzard really wants to monetize SC2, then allow us to pay 5USD for a name change, similar to what they do with WoW.

If you can't afford the game, it's not Blizzard's fault. Let's put it another way: You want to play in a band? Buy your own guitar.

SC2 is an elitist's game. Blizzard wants to keep it that way. So do I.