This recent article about the kind of homes that "wealthy millennials" are buying is a useful reminder of just how expensive homes are in San Francisco. But it's also interesting in that it speaks to the types of homes that people with options are deciding to buy. In other words: If you had all the money in the world, what would be your ideal home? (According to the article, there are about 618,000 people in the US between the ages of 24 and 38 who have a net worth of at least $1 million.)
Traditionally, "luxury" has meant lots of square footage and a big lot. But as we know, that view is changing for some/many people. We are placing a greater emphasis on being closer to the city and on living in more walkable communities. The article provides a number of examples where historically desirable areas have lost ground to areas that are now popular with the under 40 set. And in some cases, there has been a complete reversal; areas have gone from being more expensive to now less expensive (on a per square foot basis).
It would seem that being able to work from anywhere hasn't made us forget the city.