Perhaps the *99 screwed something up? I personally use
https://unixgeek.com/last-week-P1999Green.html for my Auction tracker since its way more accurate than the wiki as far as reality of pricing. I'm not sure why it seems that way, never dug into it much. Your prices are accurate on that tracker instead of the wiki though:
https://unixgeek.com/prices-P1999Gre...racesofRo.html