Looks like this hat isn't on Cloud 9 anymore.

Classifieds:

No one is selling this hat in the classifieds.

Selling:

http://www.tf2outpost.com/trade/14081282 - Wants 5 Buds + a Bill's (6 keys) for it (5.29 Buds = 5.3). Unsold for a day, yet has never been bumped.

http://www.tf2outpost.com/trade/14016139 - Has a B/O of 6 Buds. No offers yet. 3 days old.

http://www.tf2outpost.com/trade/13980409 & http://www.tf2outpost.com/trade/13835072 - Same owner of the hat. Claims to have a C/O of an Aces High El Jefe. (Unpriced)

Sold:

http://www.tf2outpost.com/trade/13590498 - Had a B/O of 4 Buds, and Zinger bought it. It was more then likely a quicksell.

http://www.tf2outpost.com/trade/13651223 - Sold for an Electrostatic Trilby (unpriced).

http://www.tf2outpost.com/trade/13807168 - Sold for an E. O. Fire Samur-Eye (5.2 Buds).

http://www.tf2outpost.com/trade/13962314 - Sold for a Disco Beat Down Hat of Cards (unpriced).

Conclusion: This hat has very few tracked trades. I still don't know how it raised from 5.5 to 5.8 Buds. I'm making the low end 5.2 Buds for the sale that wasn't a quicksell, and no real good high end can be made since there's only one recorded sale that's wasn't a quicksale. Please provide counterproof if you find any. Thanks for your consideration.