why should the asset prices matter in OER? the aim is understanding cost. BLS no longer questions homeowners but samples local rents to estimate OER since homeowners could've been wrong in their guess. of course, someone may have locked in a low interest rate so their expense is overstated. counterargument is that you are consuming a more valuable service by occupying the unit even though market rent exceeds your costs so it doesn't matter if your cost is assumed to be the market rent. note there is a 6-month sampling lag of rents, which doesn't help the perception gap in the inflation figures.