Every wonder why Search Engine Strategies Conferences are held when they are? For example; the Chicago conference is coming up in December. If you know Chicago, you know it is coined the "windy city", not because of its warm breezy air. Chicago is a cold place in December, and so is New York in March. Sweden wasn't so bad this month, but it had potential to be rainy and cold every day.
Then you have the San Jose conference in the Summer. I remember San Jose being very comfortable, so no complaints from me. Well, I rarely complain anyway. When I attend these conferences, I pretty much stay in the hotel most the time, covering the sessions.
Danny Sullivan comments on;
As for how we [SES conference times/locations] ended up this way, the first SES show was in San Francisco in November 1999. A NY show followed in March 2000, London in June 2000 I think, then back to SF in August, then Dallas in November of that year. I honestly can't recall why SF didn't happen again in November, rather than being moved up.
Forum discussion at Search Engine Watch.