I haven't visited the Left Coast in a while, and was searching for some good motivation. ETech 2006 seems nerdly and influential enough that it might be worth a peek. Earlier in the fall I was digging around looking around for previous prices on O'Reilly's Emerging Technology Conference, but was having a hard time finding any mention on the web. Now I know why. Sticker shock.
I still may see if I can scrape something together.