I don't think eBay will not necessairly "play ball", but it is a general part of their user agreement. Now the information I have is dated, but when I looked into setting up an automated price retrieval service off of eBay completed items (mainly for my own information before VCP or CardPricer existed) I read their user agreement. From my recollection, eBay owned the data and you were not allowed to use that data or harvest it without using their API to avoid people writing programs to get the information for free. It sounds like the API needs some updating to get all of the information. I am sure this is not a problem for only baseball cards. If VCP were my company I would be on the phone with my account manager finding out when I can access this information through the API and if I couldn't figuring out a workaround so I could do it in a licensed manner.
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