I've seen a couple for sale lately from between $50-60 up to $200. I'm not sure if they sold for that or not but I'm sure if you eBay completed auctions you could get a couple results.
The car I am buying the guys wants 150. I dont really want them the car is not the 10th anniversary. I was hoping to buy and sell to make a little money. He also changed out the svt logo on trunk to the tenth anniversary.