"GPA has become a resource that is imperative for all collectors and dealers of CGC comics. With the release of GPA 2.0, the first significant redesign, GPA as become easier to use and further assures its place amongst the most important resources available online in the comic book hobby"
"The data GPA provides on current sales and the state of the market is an invaluable resource for dealers and collectors alike. GPA has provided the collecting community with an incredible service that our company has referenced time and time again"
"GPA has proved to be an indispensable tool in comic book investing, as much as CGC. It’s the essential road map to successful trading in our burgeoning market"