Fair enough, they don't fail instantly. Be sure to act on warranty if anything starts misbehaving though.
Best of luck with the Samsung, they're notoriously unreliable. Good thing you have a backup in case the main kicks the bucket :)
If you're being serious try shimming it, determine where the noise is and chuck a block between. My brand new Whirlpool rattles because the floor is uneven so I have a small piece of wood between the floor and front bottom piece which takes care of it.