I also do not own a mobile phone, I found in the early days that it was unhelpful for me to be in contact 24 hours a day, if folks want me these days they can make their way to me and thus I know they have put in some effort to visit, having a cell phone simply wasted hours of my time fendling off lazy folks who enjoyed the novelty of spending my time, that certainly doesnt happen anymore
I also do not use email, no spam here
Theres a lot to said for having time off from the high tech side of life, although we are sociable animals we do sometimes forget to focus on people who matter directly instead looking out to hundreds of folks on facebook and broadcasting your life step by step all seems to me to be a very poor usage of folks lifes. Quality of contacts leads to a more fulfilling life.
I dont use facebook either btw