New poll up on the blog, since I haven't done one of these in a while. My impression is that the overwhelming majority of Blizzcon reactions have been extremely positive or extremely negative. Your options (on the sidebar at PVD) are:
What was your reaction to Blizzcon?
Pandas = Jumped The Shark. Will never pay Blizzard again.
Signed up for the year-long subscription.
Something in between these two extremes.
I will probably only leave this open for a week or so, since I'm more interested in the immediate reaction than the longterm. Go vote!