we haven't had one since we moved here, and when we had the house remodeled, we didn't even add wiring for it....
The other day we changed our cable / internet package with Comcast (hoping that would help) and phone service was part of the package.....so Shawn bought us a phone and plugged it right into the router (our whatever it's called)....and now we have a house phone....and when it's rang we just look around at each other and say "nope we're not answering it" as no one even knows we have it, much less the number lol