So what?
Fewer McMansions sold this month than sold last month, so the "average" price of all houses sold this month has gone down.
Big whoop....
"Lies, d@#m lies and statistics."
Go figure... People are speculating in the stock market, rather than making housing unaffordable. So long as this doesn't develop into an all-out, economy-wrecking crash, I'm happy.
Fewer sales doesn't mean a decreasing average, or have any effect on average other than making it more volatile.