The median price for a piece of the American Dream in San Luis Obispo County keeps getting further away for some locals. According to the Tribune, San Luis Obispo, Arroyo Grande, and Cambria recently joined the million-dollar club for median home prices. Experts point to a growing population and a small housing inventory for the rise in housing prices in San Luis Obispo County. Accelerated development of affordable-type housing, including high-density, less expensive housing such as townhomes, condos and apartments on a large scale may cool prices for a while.