My DH and I both have ATT phones and do not have a land line. We live in the boonies and our service is great. However, as someone previously said, it all depends on your location and your carrier. (Coincidentally, my DH works for a company that analyzes cell phone signal strength from one competitor to another, all over the US.)
"When I'm on my bike I forget about things like age. I just have fun." Kathy Sessler
2006 Independent Fabrication Custom Ti Crown Jewel (Road, though she has been known to go just about anywhere)/Specialized Jett