We still have our land line due to the fact that I have a home office and occasionally still get faxes sent in.
I did however ditch AT&T about 7 years ago, kept my number and went with TDS Metrocom. I get 150 minutes free LD as well as unlimited local for under $30.00. We also get voice mail, caller id, forwarding, call waiting, and more that I never use. By the time we totaled up the AT&T charges we were at almost $90/mo.
Been thinking about giving up the land line lately but we get spotty cell reception at the house.