Uhh Seattle has fiber offerings already though? For example http://gowaveg.com/
That used to be called Condo Internet and that is in very select buildings. Even out in Redmond, minutes away from MSFT campus, once can only get either Comcast or crappy 3mbit DSL from Frontier.
Comcast is offering fiber in some places and there is a another fiber company south downtown near the stadiums. Point is offerings exist.
Maybe not Google Fiber, but CenturyLink has me scheduled for gigabit fiber installation next month. North Seattle resident.