Which innovative visual merchandising technique first popularized the 'limited-time availability' model for digital cosmetics that is now standard across most major gaming platforms?

In-game stores and virtual marketplaces have become sophisticated retail environments generating billions in revenue. From cosmetic skins to battle passes, gaming companies have pioneered innovative merchandising strategies that influence consumer behavior in digital spaces. Test your knowledge about the evolution and effectiveness of visual merchandising techniques that have transformed how products are displayed and sold in gaming environments.

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Team Fortress 2's rotating hat shop (2010)
World of Warcraft's mount store (2009)
League of Legends' champion skin showcase (2011)
Minecraft's character customization marketplace (2012)