I'd pack a cell phone if the service worked. Mostly, it doesn't around here, though. Why not pack one? It doens't just be used in emergencies, there are plenty of times when a smiple phone call can save alot of stress.
How often has it happened that you say "i'll be home by 10/11/12 PM" to the wife, or to your buddies in camp etc...and through one thing or another, you end up being late, or staying out all night on the mountain , or whatever.
Also, some of us have jobs where a simple phone call can be a good fire extinguisher, so you dont' have to put out many fires when you get back to work after the weekend. Cell phones are handy there, too.
When hunting, cell phones (and most communication devices) can (and should be) turned off unless in use.
Sure, some of the best stories are told because of misadventure, where you have to extract yourself from a difficult circumstance, but frankly, some tragedies occur due to this, too.
Sometimes the difference between life and death truly is only a matter of hours, and only a fool would suggest that you are somehow less of a hunter/outdoorsman because you have a communication device in your pack.