My point is that I thought you were confusing a POTS and VoIP line. That's a common misconception. I wouldn't say paying for "nothing" -- I use the line multiple times per day. That's a matter of preference.
I know people that pay WELL over $40/mo to Verizon for cellular phone service. Heck, when you bundle in the phone payment plan, I know people that pay over $80/mo for cellular service! Funny how that works... people used to make a huge stink over paying to lease the land line phone from the telco, yet they willingly do the same on monthly payments for $1k+ smart phones without complaining.