I've never considered them to be worth the trouble. My BOB has 2 butane lighters, magnifying glass, magnesium bar,vasolined cotton balls, 3 wick candle, . Just the sparks from the lighter or the magnesium will light the candle, as will the magnifier. A little "teepee " of fuzz sticks, above the candle, soon dry out enough to burn ok, and then they will ignite larger sticks, no matter how wet.. The Vasolined cotton should of course be reserved for real emergencies, when you get soaked in the cold in some manner.

The matches are a fire hazard to have around the house. If a mouse chews on one, it can ignite the entire box. Just shaking the box can ignite one, and then the rest of the box almost explodes.