However, it looks like even Blizzard now realizes that they could have done a lot better during those 2 days of Fail Murloc agony. Blizzard President Mike Morhaime has just posted a personal apology for all the trouble with tickets on the official BlizzCon site.
In addition, he's announced that they've rearranged their convention hall space and will be able to offer 3,000 additional tickets. In order to avoid the problems of the last batch, they will be sold by a lottery system, and only sold to those with an active Blizzard account as of August 12th, 9 PM PDT, the time when the last batch of tickets was officially sold out. Further details on the lottery will be posted when they finalize their plans.
Of course, There's probably far more than 3,000 customers who were put out by the problems, but this is probably as much of an olive branch as we can expect, given that they can't overpack the convention halls and it's likely too late to find or create a new, larger venue.
Hopefully though, Blizzard is serious when they say that they will do what it takes to prevent this from happening in the future. We'll look forward to buying our tickets for BlizzCon 2009 without the presence of the Fail Murloc.