In link 4, he was offered a Planets Private Eye, a 1.5-1.6 bud hat.

Guy in link 5 claims to have someone collecting 2 buds, but that may have been the guy who bought mine for 2 buds.

http://www.tf2outpost.com/trade/6166253 - This guy would accept a duped Max's Head, which is why I think 1.5 should be the bottom line.

This new price would still put it below the plasmas, but above blizzardy and the mega-cancer effects. Average price will just barely change. by like 2-3 keys.