I've used VCP for a long time now and find it very useful. Of course not all sales are recorded and some BIN sales are suspect but it definitely gives you an idea of what particular cards are going for.
IMHO, these days, dealers ignore tools like this at their peril. The days of dealers having all the data are over, and they need to come to grips with it and come up with better answers to pricing questions other than:
"I have more than that into this card"
"I have overhead costs I need to cover"
"My last sale was more than that"
jeff
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