In practice, when interest rates went sky high in 1980 the price of home didn't actually drop very much. Instead, liquidity dried up. Nobody bought homes; nobody sold homes. The few people who had to sell their homes got screwed, but in general people rarely have to sell their homes unless they get transferred to a new office and don't have enough to buy a house there in cash (which is very attractive when interest rates are high; when borrowed money is expensive, houses get cheap to match what you can borrow, and if you happen to have money, you just don't borrow and take advantage of the cheap prices to pay cash).