A high price-to-income ratio in Western Montana usually traces to who is buying rather than what locals earn. Wealthier out-of-state buyers, often retirees leaving higher-cost coastal areas, have moved into desirable mountain-west markets for years. North Idaho and Eastern Washington saw the wave first, and Missoula and its surroundings fit the same pattern. Someone who sells a coastal home near a million dollars and pays a few hundred thousand locally can outbid local incomes without straining their own budget at all. That detaches the price-to-income ratio from what area wages would otherwise support. The contrast worth understanding is with a fully built-out metro like Southern California, where high prices sit on top of a deep, diverse local economy and severe land constraints. A relocation-driven market lacks those same supports underneath, which can leave it more sensitive if the inflow of outside buyers slows. We will not predict where those prices go; the path depends on continued in-migration, rates, credit, and the local job base. What you can watch is whether out-of-state demand keeps showing up in the sales data and how inventory compares to its pre-pandemic norm.