In the abstract I agree with you both.
In reality however, people have been pulling equity out of their homes at a massive rate.
Nationally, we have the lowest level of homeowner equity in history.
And this is taking into account that more than a third of those homeowners own their homes free and clear. That means that a vast majority of the remainder must have little or no equity to speak of. When home prices fall an additional 10-30% (or 80% iif Eleua is correct!

), those homeowners, like you and I Mesh, who do have a little equity that hasn't been withdrawn (no HELOCs for you, I assume, right MESH?) will disappear pretty quickly.
Of course I don't have data for the Puget Sound region, so if someone does, give it!