I would add another line to Borat's list: 4. How many people satisfying 1,2,3 do not Already own a home. In this era of very high home ownership rate, it will be rare to find someone unencumbered by present ownership And having a lot of cash in a bank account. May be a few Piggingtonians; but who else?
And do you think those people will sell if they really are 1,2,3, and add to the supply that's in the market, even if prices come down? After all, it's a primary resident.
The only exceptions i see are job transfer into or out of an area.