You can currently get an Xbox Series X console and a second controller for only 496.87 euros including shipping.
A new deal on eBay delivers the Xbox Series X console + a second controller to your home for only 496.87 euros. All you have to do is Code “CARE” in the shopping cart and you will receive the price.
Seller and provider on eBay is Cyberport. Many thanks to “ich-am-ich” for the tip.