In both Elder Scrolls and Fallout games, when playing a sneaky bastard, I would often leave objects on the floor so that roaming guards/enemies would bump Ito them and make a noise. This is useful in larger environments where you couldn't see a whole floor area at once. Likewise, you could put objects in places to obscure the view of NPCs (the bucket on a head) but again, in a hostile environment, moving a large bin onto a desk can obscure the line-of-sight to bits of the environment where you might perhaps want pick a lock or engage in outright larceny.
The gameplay advantages to collecting 400 potatoes? Hmmm..