Luigi's Mansion 3 has become the fastest-selling Switch title (physical) of 2019. It has surpassed other titles such as Super Mario Maker 2 and The Legend of Zelda: Link's Awakening.
Luigi's Mansion 3 has been on a 24 hours sale much longer than the two previously mentioned titles. Nintendo had a lot of faith that this game would be a remarkable release for the Switch. The last game in the franchise (Luigi's Mansion 2) sold 5.5 million units worldwide showing how popular expectations would be for a sequel. Sales figures are actually 140% higher than its predecessor which was released back in March of 2013. However, with Pokémon Sword and Shield arriving soon, we're most likely to see a drastic shift in sales.