User blog comment:LostInRiverview/New Page Cover feature/@comment-4077536-20130405103506/@comment-1519608-20130405111316

I don't really have a perfect guide on which pages to use it and on which you shouldn't. Aside from not using it on Sim pages, just ask yourself a couple questions before you choose to add the template:
 * Is this page about a feature that is important, well-known or frequently repeated theme in The Sims series? Examples: Alien abduction, Skills, Pets (animals), Create a Sim.
 * Is this page long enough to justify the addition of a large template to the header? For example, an article may discuss a core feature, but if it is short, addition of the template could significantly increase the article length. In that case, I'd suggest not adding it.
 * Do you have a good picture to use in the template? Especially when you're dealing with content about some features, finding a good picture is really difficult because it's hard to imagine how a particular thing is demonstrated. What kind of picture do you describe the Family aspiration with?

If you're really in doubt over its addition, you could ask for input on the talk page before you add the template. You could also look at 'What links here' to see if there are enough articles linking to the page to show its significance. You can look at the article's categories to see if it is part of a major game theme.

So, to sum it all up, the addition or non-addition of the template is largely a judgment call.