I think it has the possibility of becoming an issue and this cuts it off prior to that.
How many of you know some one who does not have a land line phone service, just cellular ?
This is becoming more and more popular.

When the cellular craze hit us, we kept the landlines for 2 reasons
1) we didn't trust the cellular service, with all the dead zones and dropped calls. This has pretty much gone by the wayside now.
2) We were utilizing dial up internet service. Now most have broadband.

I have my landline through the cable company for now. Only because it was a package deal with a great price for 2 years.
I have 2 cell phones, my wife has one , my 2 daughters each have one. Our wall phones very seldom ring and when they do it's a wrong number or a solicitor as everyone else calls our cells or text messages us.