I would like to think that 1100 people isn't enough of a critical mass for other companies in Boulder to start "requesting" the devotion of 80 hour weeks. As long as it's only one(Google) then employees who move to Google Boulder with the hopes of a non-Silicon Valley lifestyle can find hopefully equally gainful employees at one of the other companies.

If the general world culture here were to become more similar to that of the Valley then I'd leave. Part of the reason I live in Boulder is because of the lifestyle perks (being able to go skiing in 90 minutes). As soon as I don't have time to enjoy that there's much less reason to stay.