With Saturn, for example, who did you order / bought a laptop or iPad or something? They broke quickly. I want to get an iPad Air but I definitely don't say Saturn because everything breaks down quickly.
What does Saturn have to do with the quality of the brands?
They don't have any other iPad than Media Markt or Apple…
No. It can happen anywhere. If you want to be sure, pick it up. Then the delivery service just throws your goods around on the way to Saturn.
Where you order the goods from says nothing about the shelf life of the product. The advantage of Media Markt and Saturn is that you can go to the service center if you don't want to send it.