The cell phone that currently resides in my pocket can send and receive email and access the internet, essentially giving me the entire world's collective information and knowledge.  YET, we still use fax machines.  I only use one around once a month, but each time it's like a lesson in the history of technology.  "So I have to print out this piece of paper?  Then I have to put it in this machine?  Then I have to dial a phone number?"  Sooooo much of what I work on is already digital (i.e. not on paper) that it's a huge disruption to have to print something out and fax it.  Why don't people just use email?  It's trivially easy to use a scanner (if you absolutely need to use paper) and email a PDF.  Why won't fax machines just die already?