Proof below. Only using sales within last 2 months

Sales:

http://www.tf2outpost.com/trade/17428449

-wanted 18 buds

-sold for c9 antlers+sweets in the end (10 keys+s. original)

-seller's bp:

http://backpack.tf/profiles/76561198046645017?time=1390291200

http://backpack.tf/profiles/76561198046645017?time=1390377600

-~10.6 buds

http://www.tf2outpost.com/trade/18228367

-bought aces hoc

-buyer's bp:

http://backpack.tf/profiles/76561198044208427?time=1394953200

http://backpack.tf/profiles/76561198044208427?time=1395039600

-~13 buds

http://www.tf2outpost.com/trade/17523575

-seems to have sold for tw lucky shot (unpriced)+flies chapeau (year old price tho)+phantom

-buyer's bp:

http://backpack.tf/profiles/76561198042336407?time=1394953200

-only other sale for lucky:

http://www.tf2outpost.com/trade/18451330

-bought miami tossle (8.15)

-making this whole sale ~11.5 buds

Current trades:

http://www.tf2outpost.com/trade/18637372

-b/o of 20 buds

-no offers in a week

http://www.tf2outpost.com/trade/18493529

-b/o of 20 buds

-notable c/os (most a little old/retracted):

harvest trilby (year old price)+pe phantom+p. fetti robo drill=13-14 but outdated anyway and also bear in mind the trilby last seems to have sold for scorching

arcana naggen+logo beak=?

Sales: 10.6, 11.5, 13

Although the b/os are insanely high, sales and offers (rare) show that the real price is around my range. Offers don't even reach 15. 13 doesn't look like an outlier seeing the trilby+phantom+drill offer, which pricing the trilby at 7 before overpay gives almost 13.