[modeless]

You don't need to be selling immediately to be interested in property values. HELOCs are popular, refinancing is popular, and there's the estate to think about. People may not explicitly say "I'm propping up my property value", but actions speak louder than words.

[dougmwne]

Exactly, and plenty of people like the ego boost of an unrealized gain going up and up, even if they plan to never realize it. The homeowners I know only talk about their property values every chance they get and every other breath.