The most practical cost of nostalgia is that it redirects money and attention away from things that actually work better. When users demand familiar interfaces, physical buttons, or legacy formats, developers spend time maintaining compatibility layers instead of building new capabilities. That brings slower updates, higher security exposure, and costlier systems, while genuinely better ideas get judged by how closely they imitate the past. My opponent may point to simplicity and reliability in old tools, which is fair, but those qualities can be rebuilt in new systems. Preserving the feeling is not the same as preserving the tech.