Comment by baq
You can build better than the code allows would be the point. Code cares about minimum levels of safety, not planned obsolescence or market segmentation. E.g. why not build homes out of concrete instead of wood? Why not use better roofing material than asphalt shingles? Etc.
I'm not sure but I kind of doubt houses are built out of wood entirely because of costs. I live in SV so I assume anyone who owns a house is ultra-rich, but they're all wood.
Wouldn't concrete be harder to make additions to?