Quote:
Originally Posted by glchen
I don't think this is the best analogy. The major TPG's back up their grades. That is, if they make an error, they will compensate the owner of the card the difference between the price that the owner purchased the card for and the market value for the card at the revised grade. Credit rating agencies obviously don't offer any kind of compensation if the rating that they provided proved incorrect.
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I have never read PSA's guarantee but i have read SGC's and it is a joke at best. Everthing is at their discretion.