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<p>[QUOTE=&quot;umtrr-author, post: 787007, member: 5719&quot;]With respect to eBay, part of the original question:</p><p><br /></p><p>Just as individual over the counter sales can&#039;t be accumulated-- even if you somehow got every brick and mortar coin shop into a network, that still leaves coin shows and private transactions-- eBay sales can&#039;t be accumulated either.&nbsp;&nbsp; Which I think leads to the whole point about guides being just that.</p><p><br /></p><p>I agree that eBay has certainly led to some degree of upheaval of prices in many different markets including coins (it has more or less demolished the relatively &quot;closed&quot; aftermarket for &quot;collectible&quot; model trains for example).&nbsp; Even so, it would be a monumental if not impossible task to somehow compile the sheer number of sales that take place on that venue.&nbsp; </p><p><br /></p><p>Then you&#039;d have to tease out the sales that shouldn&#039;t be counted for some reason or another... uninformed seller, two or more &quot;highly motivated buyers&quot; who drive the price out of sight on a common coin, shill bidding, inapprporiate grading, etc.&nbsp;&nbsp; And this assumes that eBay would be willing to co-operate in the harvesting and commercial use of this data, which they most certainly will not.&nbsp; (They claim that they &quot;own&quot; it.&nbsp; I seem to recall that your consent to not harvest results was part of the User Agreement.)</p><p><br /></p><p>It&#039;s possible for someone to pick a few items, set searches on them and compile the results as another data point, but I can&#039;t see the value of going beyond that and then only for personal use.&nbsp; </p><p><br /></p><p>In my mind, the statements &quot;I can get this on eBay for $&quot; and &quot;I can get $ for this on eBay!&quot; result in the response, &quot;Well, why don&#039;t you?&quot;[/QUOTE]</p><p><br /></p>

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