tolerance for box imperfection has gone up imo since covid. i have many sets i held back because they weren't minty precovid because they have a crease maybe along the top fold of the box but the front of the box is perfect. the larger the box, the longer it is retired a little more lattude also than a recently retired small set. i do not sweat the creases anymore. i just sell them as new as long as they don't have a hole and the seals are intact. if someone isn't happy, they can return it . so far so good.