My first Unusual suggestion!!

http://www.tf2outpost.com/trade/18434795 (B/O of 8 buds, 3 weeks)

http://www.tf2outpost.com/trade/18624489 (B/O of 8 buds, 2 weeks)

http://www.tf2outpost.com/trade/18531851 (Sold for a Terror Watt CM ~ 5.3 buds) (Outlier)

http://www.tf2outpost.com/trade/17330260 (7 buds, took 1 month to sell ie, not really a quicksell.)

http://www.tf2outpost.com/trade/16733659 (Sold for 6 buds and 55 keys, 8.8 buds) (I'd also say this is an outlier due to the 8 bud unsolds) (2 months old anyway)

Thanks to jojobirdie and Kaushu for proof.

Making price 7-8 based on B/O's and 7 bud sale.

Thanks for voting : )