A few years back, my AT&T landline was around $60/mo. I dropped it and went with VOIP for about $12/mo plus free long distance, caller id, call forwarding and a bunch of other stuff I don't know how to use!
It is now around $16/mo and I think I will drop it when I retire to Arkansas. Get very few calls on that line other than telemarketers. I was able to keep my AT&T number, which was a plus, since I had had that number since the days of dial phones, close to 40 years and all my contacts knew it!