Posted By:
MikeU"last month a 1914 Mathewson graded SGC 1.5 went for $10,000 less then the last PSA comparable version..that is a BIG DIFFERENCE..."
$10K less? The card itself sells for less than $10K.
From Vintage Card Prices e.g. 1914 CJ Mathewson:
SGC 20/1.5 Sales history:
4/29/07 REA $8,225.00
3/12/07 eBay View Auction $8,101.00
4/3/06 Mastro $13,901.40
11/17/05 Sloate $14,537.00
PSA 1 Sales history:
8/30/06 eBay View Auction $4,801.99
From this, PSA's lack of 1/2 grades cost the seller 200% to 450% in profit.
You will have to come up with a different example.