To spell it out again, not everything has to be done on the internet. Many people go on thinking ‘out with the old in with the new’ without ever considering scope and practicality. If you suddenly became manager of an office building with a complete pneumatic tube system your first instinct might be to gut the pneumatic tubes and do everything over email. That’s an OK thought but should that really be your first instinct? Most people wouldn’t even understand how pneumatic tubes work in the first place. Wouldn’t it be more prudent to to understand what the tubes are there for. Why they’ve lasted 60+ years. If the building is already wired with ethernet and has internet connection what should it matter if you use both keeping the tubes in place to continue their purpose?