To each their own, but I like my home line. I tried cutting the cord. I quickly realized the disadvantages. It's actually cheaper than boosting my plan to the 800-1000 anytime minutes I'd need if I didn't have a home line, and the home line is a lot more reliable than even the best wireless carrier here. I can send and receive faxes using my computer. I can nef if the cable connection goes down. I don't need to spend $75 on the hardware hack my Tivo would need to use broadband. I can give salespeople and other business relations my home phone and keep my cell number to myself, giving it out only to people who I deem worthy of getting a hold of me when I'm not home. It's a power and convienience thing.
The most important thing is peace of mind though, because 911 calls go through to right dispach center almost instantly. If I call 911 from home, they've got my location within 3 seconds (I've seen the center in operation, it's fast). If I call from my cell phone, it goes to state patrol dispatch, who I need to ask to transfer me to Minneapolis. Then I need to tell Minneapolis where I am, because location technology is something that nobody is willing to pay for, so it's not in place yet, despite being supported my most new phones.
If I just had to get rid of one or the other, it would probably be the home line. On the other hand, if I had kids, it wouldn't even be a question. The home line would stay no matter what.
That's just me though. Good luck.