For those at middle age such as myself, the land line continues to provide the conveniences necessary for extending its service even today:
- It is relatively inexpensive ($10-$20 per month if bundled with an internet plan; free with some VOIP companies like oOma);
- There is no need to worry about batteries running out on cell phones (what a pain!);
- It is easy to retrieve messages via answering machine; and,
- The cell phone could be used strictly for emergencies.  A pre-paid plan offered by Speak-Out wireless (offered at 7-11 stores or online) costs only 30 cents per minute for talk, 15 cents per text or overall, $25 per year.

Remember also that one could "port" or transfer their land line number to their cell phone service when it is finally time to end the land line...so there is no rush to go exclusively cell...