rjain,
You do realize that housing prices as a national average have
NEVER gone down, don't you?
They have of course dropped in certain regions due to local factors, but even when interest rates have gone up quickly, the national average housing price has
NEVER gone down.
As mentioned, in times of high rates, two things happen to keep housing prices from getting out of people's reach. People choose ARM's because at historically high rates, there is a better chance of the rates dropping then of going up. People's average income typically rises since it is a boom time.
These two factors keep housing affordable without the need for a drop in housing prices.
EDIT: I have to correct myself here. I said never based on several articles I read, but I was looking for the stats. According to HUD, there have been a few occasions where there were minor drops in value for a year or two. The only stats I could find were for 1964 to 2002, so I can't be 100% sure on prices earlier than that.
Here are the stats I found. But note that the times when prices did drop, the drops were very small and the prices went right back up within a year or two. Looks like the biggest drop was around 10% in 1969 to 1970.