Proof below. This is actually an increase from previously suggested price of 7-7.4 4 months ago.

Sorry cranwell

Sales:

http://www.tf2outpost.com/trade/15061020

-sold for hearts mancer+burning l'inspecteur: http://www.tf2outpost.com/trade/15107188

-~6.9 buds

http://www.tf2outpost.com/trade/14611403

-b/o of 8 buds

-sold for ge chef hat (3.25 outdated)+pe stuntsman (2.5 never properly priced)+blizz sam (1.9 then)=6.9 buds

-seller's bp:

http://backpack.tf/id/76561198038792810?time=1381561200

http://backpack.tf/id/76561198038792810?time=1381820400

http://www.tf2outpost.com/trade/15991868

-sold for beams fez (super outdated)+1 bud=~7.3 buds

http://www.tf2outpost.com/trade/15960408

-mancer+2 items sold/bought for clean beams phantom (outdated): http://www.tf2outpost.com/trade/15909412

-~5.6 buds, the beams phantom's original price is very low since it's old, probably around 7 now, not using this in range, far away from sales anyway

http://www.tf2outpost.com/trade/15292459

-mancer+~2 buds bought burning nappers (8-10 then): http://www.tf2outpost.com/trade/15951084

-7 buds, no overpay as offered

http://www.tf2outpost.com/trade/14674636

-wanted ~8.1 buds then

-sold for 88 keys+ghosts private eye (outdated)=~8 buds

http://www.tf2outpost.com/trade/16484152

-duped, mancer+6.5 buds sold for scorching cm (outdated): http://www.tf2outpost.com/item/440,2168284855,523,5

-7.9 buds

http://www.tf2outpost.com/trade/16303138

-duped, sold for 9.5 buds

http://www.tf2outpost.com/trade/15804776

-wanted 13 buds

-mancer+sf flame bought beams flamenco+bills: http://www.tf2outpost.com/trade/16057188

-9.4 buds

Current trades:

http://www.tf2outpost.com/trade/16481270

-cranwell wants ~8.7 buds

-no notable offers

http://www.tf2outpost.com/trade/16438315

-wants ~11.6 buds

-no notable offers

http://www.tf2outpost.com/trade/16473277

-notable offers:

beams phantom (I explained this above)

http://www.tf2outpost.com/trade/16057323

-only ts is clean, no one cares much anyway

-wants 10 buds each, almost a month old

-notable offers:

beams aa=6.8

clean miami modest scrap=8.4

harvest billy+lantern bucket (never properly priced)+ghosts tam (year old price)+g. fetti mancer=8.7

burning spartan+1 bud=8.6

pe brigade (outdated)+3 buds=7

oc tc=8.3

aces war pig+1 bud=8

lantern bubble=8.6

ge bubble=7.2

http://www.tf2outpost.com/trade/15403587

-cashing out, b/o of $400, ~12 buds

-no notable offers <3 that scorching tc

http://www.tf2outpost.com/trade/15982612

-b/o of 9 buds, almost 1 month

-notable offers:

surge beak+15 keys=7.8

beams aa again

6 buds+16 keys+2 crate #50s+2 pdas+sweets=8.2+

pe brigade+3 buds again

7 buds

terror jefe=8.9

pe slug+cauldron noir (outdated)+1 bud=7.9

http://www.tf2outpost.com/trade/15939803

-wants 8 buds, almost 1 month

-no notable offers

Sales: 5.6, 6.9, 6.9, 7, 7.3, 7.9, 8, 9.4, 9.5

There are quite a few b/os below 9, some are willing to take 8 and below even. 9.4 and 9.5 look a bit too high, absolutely no offers above 9 and many are having trouble selling this for 9 and less. So 7-9. Unusual overpay and original prices used.