Beautiful and comfortable neighborhoods ARE additional resources for ourselves, our families and our communities.
I've lived in really old buildings. Even if the bricks on the outside were over 100 years old it was extremely expensive to update the air conditioning and windows to be a good living experience. Why take such a superficial view of what is "built to last" just because the outside stays the same? Best case scenario for a long last building is a ship of theseus situation. And while it may be cost efficient for historic college campuses to renovate their old buildings continuously, chances are this not applicable to random middle class homeowners.
I've lived in really old buildings too. Right now, I live in an adobe house that was likely first constructed in about 1870. Growing up, I lived in some houses that were built (of stone) in the 1700s. And yes, there are problems caused by the fact that our idea of what a home/house ought to be changes over time, for lots of different reasons.
I still think we can do better than most mid-range contemporary US stick built housing, and the neighborhoods it creates.