The report's broad scope is a welcome corrective to the narrow way we usually talk about housing in Philadelphia. Judging from all the ink that the issue of gentrification receives, you might assume we face the same crisis as cities like San Francisco, Seattle, and New York, where even solidly middle-class people have trouble finding housing within their price range. As the new report reminds us, Philadelphia still has a 14 percent vacancy rate, even after nearly two decades of steady (but relatively slow) population growth. For a blunt illustration of just how different our situation is, consider these numbers: San Francisco's median home price is over $1 million. Ours is a mere $153,000.