Are ebay deals hurting secondary market price??

stephen_rockefeller · 2013-03-04T20:23:11.000Z

Maybe I am reading too much into this but are the deals that some people stumble upon on eBay hurting the market value of sets? Since the calculated value is based upon eBay sales then this should be the case right? A recent example is the smoking deal that a member (over 50% off) got yesterday on a set due to the sellers listing error. That sale will probably hurt the value since not that many of that set being sold. Will stuff like this even itself out eventually? Am I making an issue out of nothing?