Land line usage?
Our local emergency planning people actually still encourage people to have a "land line," ignoring the reality that a significant number of homes either have had nothing but cel phones for years, or have a "home phone" provided as part of their cable or Internet service.
If emergency response is your priority the money is better spent on a robust and redundant wireless network.
Besides, we're paying $95 CDN for Internet and home phone, and another $90 for wireless service. There's no way I'm spending another $60 a month for POTS.