Proof below. Originally priced as 7.4 5 months ago.

Sales:

http://www.tf2outpost.com/trade/14758099

-b/o of 12 buds

-sold/bought for beams ten gallon (6.4 outdated)+1 key+14 ref

-buyer's bp:

http://backpack.tf/id/76561198050239682?time=1380610800http://backpack.tf/id/76561198050239682?time=1380956400

-ten gallon: http://www.tf2outpost.com/trade/14665074

--~6.6 buds, gallon looks pretty undervalued on here

http://www.tf2outpost.com/trade/14697410

-wanted 9.5 buds

-ck+phos swagman (unpriced) sold for 13th hour swagman (11.7 after overpay)

http://www.tf2outpost.com/trade/16049923

-sold for duped secret lid (outdated but suggestion used dupes to price)=7.4 buds

http://www.tf2outpost.com/trade/15173685

-b/o of 11 buds

-bought miami attendant+flies hallmark: http://www.tf2outpost.com/trade/15133012

-~7.7 buds, no overpay as offered

http://www.tf2outpost.com/trade/15164701

-b/o of 10-11 buds

-sold/bought for aces war pig: http://www.tf2outpost.com/trade/15171614

-also confirmed here: http://backpack.tf/vote/id/526db9e14cd7b8cb0c8b4568

-7.8 buds

http://www.tf2outpost.com/trade/15163055

-sold/bought for ge anger: http://www.tf2outpost.com/trade/15141434 (using the recent suggestion which used this sale except they all missed the eas, last price too outdated)+black eas: http://www.tf2outpost.com/trade/15063757

-7.4 buds

http://www.tf2outpost.com/trade/15088331

-b/o of 11 buds in set

-bought one of those uber duped+uber long history burning milkmans+sweets: http://www.tf2outpost.com/trade/15148163

-can't properly value the milkman so not using this but probably ~7

http://www.tf2outpost.com/trade/14892411

-b/o of 13 buds

-ck+steaming cowl (1.1)+pink g. dcc bought roboactive hw (7.4): http://www.tf2outpost.com/trade/14657454

-6 buds, outlier

http://www.tf2outpost.com/trade/14858848

-wanted 12 buds

-ck+1 bud sold for ks wraith (price then was very outdated so looking at the recent one but suggester missed the bud, but anyway without the sale that's 8.5-9.1)

-bud: http://www.tf2outpost.com/trade/14892411

-6.9 buds

http://www.tf2outpost.com/trade/14743439

-ck+nnb brigade bought beams lucky shot: http://www.tf2outpost.com/trade/14584817

-5.7 buds, no overpay as offered, clear outlier

Current trades:

http://www.tf2outpost.com/trade/14837674

-b/o of 13 buds

-notable offers:

ks swagman=6.8

aces bomber+2 craft#s (not worth much, not low-crafts)=7.9-8? probably outlier

secret g. ushanka=?

http://www.tf2outpost.com/trade/16161731

-wants 9 buds

Sales: 5.7, 6, 6.6, 6.9, 7.4, 7.4, 7.7, 7.8

Asked polar bear and he too thinks the range should be 7-8 with sales and offers roughly around there. Anything below 7 looks low here, not including them. Unusual overpay and original prices used.