Don't think there is any way to legitimately track sales of complete sets. Raw set grades are based on the opinion of the seller. Graded sets have a GPA that could range from (just for example) 1.01 to 9.99. Not saying a straight 9 or straight 10 set would never come up for sale, but how would you keep track of all the different GPA's of say 8.72 or 7.36?
For the reasons explained, we do not. However, we house every eBay auction in our repository. At some point in time, we might make multi-item lots available. If that happens, we will, as always, report sales from our backlog. However, the amount of text analysis necessary to do something like that makes the move cost prohibitive at this juncture.
As long as you know the grade of every card in the set you can enter it using our "Add set to My Collection" this will give you a global add feature and every card is on one page. It takes literally minutes to do and is very easy and fast to give you a current market value for a whole set.
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Take care,
Ted Golden
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