PSA has the advantage in the marketplace on high grade cards in sets that are actively contested on the registry. At present, SGC's registry does not have the critical mass to lead to similar financial results. That could change as I know they are working to improve their registry program. However, my experience with the two companies has led me to firmly believe that SGC does a much better grading cards. They are more consistent, they have not good, but great customer service, and they have the best looking holders in the market. When I grade cards I use SGC.
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