Turrets on sale

Towards the end of the game (not sure what chapter) players can notice that the turrets we've come to know so well are being placed in boxes that resemble ones we would see at any local big retail store. This further empowers my suspicion that the products being made in the Aperture Science Labs have been distributed in the world. Doesn't have the necessary ideas right now to explain what this means, but i'm sure, since it was included, it has some significance.