Originally Posted by
serra
Why do you say have two? So you always have a back up, or for more light?
Backup. Any light can fail. A $1000 headlight can fail, and when it does you'll be happy to have a $30 flashlight in the bag for backup.
I've been out in the middle of nowhere on a potholed gravel road at 5AM in the winter on the way to work and had my light go out with no backup. It's not a good feeling.