> When I think of the 'burbs, I think of vast expanses of asphalt where only the poorest would consider walking and labyrinth enclaves of cul-de-sacs where taking the kid to play with a neighbor requires a half-mile drive to go 500 feet as the crow flies.

Modern design (and redesign, though that has less freedom) of low-density suburbs, while still avoiding street grids to limit residential traffic speeds, often embraces walking and bike paths that are more direct than roadways, and designs that improve transit serviceability, instead of using the branching, cul-de-sac dominated structure of, say, 1960s suburbs.