For a long time we had both a land line and our cell phones, we NEVER used the land line so we got rid of it. Justin works at home though and using his cell for work got to be too much so he got a land line for his office.

If your battery is low and you need to make a call you can plug it in and talk on it while it's plugged in. If the battery is low and the power is out you can always plug it into your car.