Just found an interesting article on the web: a German local court ruled, that a customer can return his DSLR if it shows bad pixels.
Someone bought a Canon 5D Mark II in January 2009. After some time it showed a red dot in both photos and videos. He brought the camera to a service center and the managed to make the red dot disappear on photos but not in video mode.
The customer did not accept that and sent it back to service. Canon service sent it back saying that it was working with in the manufacturer's specifications and no repair required.
Customer did not want to accept a - in his opinion - defect camera and wanted to return it or get a rebate which was declined by the vendor. So the whole thing went to court.
In March 2011 the court ruled that the vendor had to take back the camera. The court stressed that there is a big difference between monitors (where there are "pixel classes") where you have to accept some bad pixels depending on the class. In digital cameras this does not need to be accepted especially if it can be corrected in photo mode but not in video mode.
Just thought this might be interesting for some...