Only a few stores has that set in stock.
The Best Buy exclusive Aquaman Blu-ray 3D combo set that was released on March 26, 2019 with a MSRP of $29.99 has sold out online.
Very few Best Buy stores has that set in stock; for example, only one store near Seattle has one copy in stock as of this writing.
Their 3D set includes the film on Blu-ray 3D, Blu-ray, DVD and digital; as a comparison, the 3D set that's sold elsewhere only includes the film on Blu-ray 3D and digital.
What's surprising is scalpers have listed their copies for only $40 to $50 on a popular auction website.