So if anyone has already written about this then I apologize for missing it, I just thought that this was important to discuss.   The short version: eBay recently made some changes to their site which significantly skew the sales prices of CGC graded comics on GPA Analysis and eBay past sales listings for all sold comics (both CGC and Raw).  I explain below if you care to read the longer explanation. Recently, probably 3-4 weeks, eBay made some slight changes to their site.  One n