Cremation, like burial, is simply a disposition preference. The difference in costs is primarily determined by the services and merchandise selected in conjunction with the choice of disposition and other factors.
There is a significant price difference between direct cremation and traditional burial service, but likewise, there is a considerable price difference between direct burial and traditional burial services.
Unlike with burial, families choosing cremation have the option but are not obligated to purchase a burial plot to inter remains, providing additional savings.