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There are some concerns that the template transclusion feature of the MediaWiki software may not always be used wisely. Transclusion is a simple idea, but all of its consequences may not be immediately apparent to users with a less technical background. Although templates make many tasks easier, there are risks associated with their use—as there are with any tool. Therefore there is a cost that is paid for the benefits of templates. This includes a direct cost in terms of increased machine resources; because of this, template limits are imposed by the software. Even within those limits, there are some additional costs. This article is an explanation of these costs and benefits.