#2 - Aug. 4, 2008, 6:33 p.m.
First off I want to say that there are no guarantees or exact time tables on when tickets will sellout.
You can reference the news posts we had for BlizzCon 2007 on how the ticket sales went for it:
http://www.blizzard.com/us/blizzcon07/
"Approximately half the available tickets for BlizzCon 2007 have been sold in the first 24 hours, and they're continuing to go rapidly."
And we had a news post up that they were sold out about 72 hours after they went up. So, if you plan to go I recommend purchasing them as soon as you are able so.
Keep in mind that this information references what happened in the past so there are no guarantees or exact time tables on how it will work for this year. That enough disclaimers?