When people go on camping trips they still need to be able to cook meals or prepare hot drinks. They could light camp fires yet many prefer to use a small camp stove instead. Generally these stoves are either wood burning or use gas bottles. In many respects using gas powered stoves is more convenient than using a wood burning one. Campers would only need to take a gas bottle with them, and would not have to search for wood to use for the stove as soon as they have reached the campsite. If weather conditions are not so good having gas bottles means that people do not have to brave the elements to obtain fire wood, and can concentrate on putting up their tent.
All in all a small camp stove is a must have for any camping trip, just make sure there are enough bottles of gas packed, or there is enough wood to fuel a wood burning model of stove.