In fact, Costco even claims to sell one of the most sought-after types of steak: Wagyu. But is it the real deal? Now authentic Wagyu beef is pretty hard to find because it can only come from four ...

Cut of raw wagyu beef garnished with herb - ajiilhampratama/Shutterstock ...

Two Costco members in line at the Costco Food Court - George Rose/Getty Images ...

Costco prides itself on excellence with its Kirkland signature brand—for years there have been rumors Kirkland's vodka is made in the same factory as Grey Goose, which is not true but could be true, ...

And this new find is yet another feather in Costco's cap: the Costco oil diffuser is incredibly similar to one made by the high-end brand Baobab. If you've never used a reed-style essential oil ...