my guess is anyone can find a small sampling of books that correspond to overstreet...and, as sqeggs mentioned) since many GA sals are raw, and to "older" collectors, OSPG does have "more" relevance when it comes to pricing and realized prices... that said, from what I have tracked, OSPG on "main" titles (such as any superhero timely or dc) is often times as much as 25-500% off on average... I would venture to say that OSPG is wrong on every single All Star, every single Captain America, etc, etc... in every grade...just a reality of the medium