There are tens of thousands of fax machines and fax systems still in use today because, despite all of our technological advances, the fax machine is still the most secure way of delivering medical and legal documents between locations in a compact time frame.
E-mail? Right out unless you're configured for encryption and getting all the companies you deal with to agree on, utilize, and understand how the encrypt/decrypt works is ... beyond Herculean in scope. In the medical field alone that would require suppliers, doctor's offices, HME/DME companies, hospitals, hospices, quick care/walk-in style facilities, pharmacies, and so on to all have a system that worked easily that everyone agreed on. Of course, that doesn't begin to take into account the MILLIONS of patients that just might want to communicate with you via e-mail.
The legal field is just as bad - judges, courts, lawyers, public defenders, police departments, fire departments, etc, and clients of course.
So, yeah, technology that has supposedly died usually is alive and well and the people who think it has died just work somewhere they don't have to deal with it.