6 month old price, resuggest since one seller change their B/O.

Sales:

http://www.tf2outpost.com/trade/17743787

sold for a DP brainiac which is 5.6 buds using the old price, but there are 2 for sale with 5-6 bud b/os atm.

http://www.tf2outpost.com/trade/17819935

http://www.tf2outpost.com/trade/17958905

http://backpack.tf/item/1989946752

Appears to have sold for a DBD pampered pyro (No price)

http://backpack.tf/id/76561197996931476?time=1388217600

http://backpack.tf/id/76561197996931476?time=1388476800

DBD pampered pyros can be bought for 2.5 - 5 buds:

http://www.tf2outpost.com/trade/16934954

http://www.tf2outpost.com/trade/17365342

http://backpack.tf/item/1921571778

Sold for AF Chef hat (No price)

B: http://backpack.tf/id/76561198054800443?time=1391414400

A: http://backpack.tf/id/76561198054800443?time=1391500800

AF chef's hats can be bought for 6 buds: http://www.tf2outpost.com/trade/17755775

I think one was sold for a killa tyrant, but I can't tell for sure if other items were added (i think it was conq + 1 bud) so it's not of much use. It's and old price anyway (~6 months old)

Current trades:

http://www.tf2outpost.com/trade/16842653 B/O 6 buds

http://www.tf2outpost.com/trade/18014653 B/O 6 buds

http://www.tf2outpost.com/trade/18009650 B/O 5 buds

http://www.tf2outpost.com/trade/15078268 B/O 6 buds

So new 5-6 range is representative on the current B/Os and what the apparent sales values have been.