History repeats itself. Here's how to get ready. How do we know that the meteoric rise in U.S. housing prices can't be sustained? Common sense and history. Common sense tells us that something will give. It may be that as more people sell their homes and inventory opens up, supply will keep pace with demand, driving down prices. Or it might be that prices will hit a tipping point, and home buyers anxious to save money by snagging a low rate will lose interest when sky-high prices eat up any possible savings.