Look closer, they’re auctions, all with several days left. The final sale prices will be much higher, I guarantee. I’d want to look over the description and check the seller reviews, but I see no indication that these could be fraudulent in the screenshot. eBay is actually pretty great for used PC parts in my experience, my current graphics card and CPU I got used on eBay.
The snorkel extending above the roofline is just straight mad 🤣