Buyers will ultimately pay what they feel the item is worth, so if they can get them for €200 a pop from you, Chris or others then that's great and they're not going to hand over £1000 to that eBay seller. He'll learn his lesson when he's left with unsold stock.
As I said in my first post, we can laugh or give out yards about silly prices when they're highlighted, and once they're highlighted anyone here that sees it knows to avoid. It still doesn't mean it's right to berate the seller on a personal level by saying they should feel ashamed.