With more and more trim tags showing up on eBay, it's nice to know we have people like Mark keeping up with them. I did a search and found these tags on eBay, three X-11 ($51-$303), X-55 ($150), X-66 ($800), and three X-77 ($460-$950). I have seen X-33 tags go for over a thousand dollars.
People buying these tags aren't framing and hanging them on their walls. I've seen sellers in their ads call Mark and other members the "Camaro Police" when the ads were questioned. Just be careful and do more investigating when you find that dream car. Wish I would have.