I haven't had a land line since 2003 or so, and I only got that because dialup internet was the only thing available where I was living. In the rare event anyone needs to call me, it's probably an emergency and having a phone ringing miles away from where I am is not helpful.
Generally, though, most of my "phone" usage in the communication sense of the device is for work email. I also find it useful on long days of Amiga hunting.
