one of the big reasons I keep a headlight is for emergency situations - much like my first aid kit. While many time I don't need it if I accidentally get hurt while taking a midnight "break" or need to hike out in a emergency situation because some else gets hurt a headlight is in my opinion a must. So while many people say "I don't bring one" I hope these same people don't feel the same way about a first aid kit. I can say I have never used my first aid kit but still bring it and my head lamp. petzl-e (which stands for... emergency hum...)