[Bluestrike2]

It's a vacuum. They suck up dirt. Is it really that much of a stretch to imagine that a vacuum's bin would therefore have dirt in it? The entire point of a clear bin is so that you can see how much dirt is in it and whether it needs to be emptied.

The marketing photos show a new, unused vacuum. Duh. The alternative would be as odd as a Johnson & Johnson selling bandages by using a photo of a gory, infected, pus-filled wound on the outside of the box. While that may very well be a valid example of its use, I don't really see many people wanting to buy anything marketed in such a manner.