I feel products like this - http://www.vtechphones.com/products/product_detail/1673 - (just an example) are a better solution to this problem. You dont need a land line subscription, just a cell phone with bluetooth.
When my parents get home, their cell phones pair to the home phone, so when they receive a call, the home phone rings. They don't have to carry around cell phones, and they can place calls through their cell phones using the handsets. Seems complicated at first, but saved headache and $$ in the end.
I think the major selling point is that you're not SOL if you need to be reached or call 911 while your cell is dead/left in the car/etc.
Not that it's an important enough point for me personally to have a land line, but I can understand why a lot of people would favor that. As a $10/month add-on for existing Fiber customers it's not a bad deal.
