When you compare prices realized among PSA and SGC cards, you need to divide them into two categories: set registry cards, and collector cards.
PSA cards achieve higher prices when they fall into the high end, highly competitive set registry market. But at lower grades, more the collector market, SGC cards generally do better simply because they are more strictly and accurately graded.
You can look at the set registry as an almost distinct hobby from the one most of us indulge in.
|