Good question Eric Calderwood! I find myself asking the very same question when I see a couple having dinner or walking together and their cell phone goes off and they actually take the call!
Like most people, I enjoy the convenience of the technology we have today. It's incredible where we have gone with cellular power! I could live without one, but I don't want to. I do have a limit to where my cell phone is allowed to interrupt me.
Visiting with family or friends, no phone (it waits in the car). Breakfast, lunch or dinner with anyone, no phone. Anytime I'm talking with someone, no phone.
Recently I invited a young friend for a short shopping trip. When we arrived at the store he commented, "Don't forget your phone". When I replied, "No, I leave it in the car." he was astonished. I gave him my reasoning, "I am with who I want to be with. I want to focus on our shopping trip and you, not on who may be calling me. Your what is important to me right now. The phone can wait in the car for us. Text messages and phone calls will be there when we get back." He really appreciated what I told him and tossed his phone back into the car too stating, "They'll be waiting when we get back". I responded, " Exactly".
Cell phones are great, but you are more important.