Having a fire starter is a good idea for people serious about keeping a complete and efficient camping/survival kit.
Fire starters work well in dry or wet conditions, and they're not as fragile as matches.
If you've never started a fire with a flint, know that it isn't that difficult. With just a bit of practice, you'll have no problems igniting a blaze with a just few flicks of a flint like a pro.
For a step-by-step guide, complete with pictures, check out this simple tutorial on how to use a flint stick on wikihow.