Current b/os:

http://www.tf2outpost.com/trade/24189001 - 15

http://www.tf2outpost.com/trade/25227943 - 15

Sales

Sold for GE Ubersternmann (6.3) + 9 buds ~ 15.3 buds:

http://backpack.tf/profiles/76561198047441117?time=1424937600 - after

http://backpack.tf/profiles/76561198047441117?time=1424851200 - before

Sold for 15 buds pure:

http://www.tf2outpost.com/trade/23950221

Offered on Secret Merryweather (10.1) + 2 buds + eerie mountain cap (2) ~ 14 buds:

http://www.tf2outpost.com/trade/24975305 - 15 buds b/o

http://www.tf2outpost.com/trade/24951318 - merryweather

Mini for mountain cap:

Mountain cap has no valid recent sales and most of them are in bulk sales or quicksales. Valuing this at around 2 buds.

Other additional sales

Sold for duped hearts rack + ★ Flip Knife | Fade (Factory New) ~ 17 buds (seller's b/o)

http://www.tf2outpost.com/trade/22799194

Mini for rack:

http://www.tf2outpost.com/trade/25028521 - sold for Logo TC ~ 12 buds (my b/o)

Mini for Fade:

http://www.tf2outpost.com/trade/25028427 - sold for 6 buds 6 keys

not included in the range due to various b/os at 15 buds.

Sold for duped sunbeams fedora + 5 buds ~ 12-13 buds:

http://backpack.tf/profiles/76561198094714199?time=1423814400 - before

http://backpack.tf/profiles/76561198094714199?time=1423900800 - after

Not included due to higher value sales.

Outliers:

http://www.tf2outpost.com/trade/24824844 - bulk sale (b/o at 15 buds)

http://www.tf2outpost.com/trade/24733669 - offered on Spellbound Tyrants (rack used to price tyrants) (15 buds b/o as well)

http://gyazo.com/c2561fc4ab2cfa3f59e7f27ef98c2fca - bulk sale

http://backpack.tf/profiles/76561198042344661?time=1424937600 - rack + p.fetti yellow belt + ghosts HWAH for a purple energy stash

http://www.tf2outpost.com/trade/25214859 - sold with other unusuals for harvest anger

http://www.tf2outpost.com/trade/25173221 - duped HOUWAR + 1 bud

Rounding up to 14-15 buds, seems fair.