As part of my ongoing preparations and musings about a possible West Marches style campaign, I began to think about lighting. I really like the idea that adventuers have to rely on a torch or lantern to see in the deep dark dungeons of my world. I like the idea that a sudden gust of wind could blow out their last torch and leave them stranded in the darkness with all the horrible monsters.
Of course, having characters with darkvision (almost) completely prevents that sort of event from having its intended effect. The characters with darkvision can guide those without. What's more, the characters without darkvision suddenly become an annoying hindrance to those with it.
I do not want to ban all of the darkvision races however, as that would deny too many options for my players.
My question is, how embedded in the balancing of the races is darkvision? Would removing it adversely affect this balance? What alternatives and/or replacements are there?
As always, I would rather that the problem be solved, than the specific question be answered, so, if you can think of a different solution, other than removing darkvision, feel free to suggest it.