 New housing built during the economic boom has included low numbers of affordable units, affordable units are often means-tested to exclude all but the poorest residents, and the less expensive housing tends to be built at a distance where land is cheaper.Proximity to work often means a tradeoff in quality of housing stock, school quality, personal safety.In real terms, living in low quality housing or marginal neighborhoods is a tradeoff between access to income and access to resources such as rising home equity or quality education.