I lived in Seattle from 2000-2008. Rent (and property values!) went up by -- more than inflation -- nearly every year that I lived there. They skyrocketed by the end of that period. Wikipedia says the population grew by 8% between 2000 and 2010.
I'll give you that Seattle is more affordable than San Francisco...but it's also at least twice the land area of SF, with fewer people and geographic constraints. And the weather is...an acquired taste.