New, should not be the default answer.
Here in the Saint Louis Metropolitan area we have a varying age of houses, like most cities. Many of these buildings ornate features reveal the quality craftsmanship and materials invested. Retaining the feel and quality of these buildings will maintain the character unique to each. It takes some forethought but the rewards keep the unique qualities with the building.
These two examples demonstrate the idea. This HVAC duct was salvaged, as well as the bathroom tile and mirror. When preparing a renovation, salvage character pieces and incorporate into you design.