Resuggesting.. again.

[proof below]

Proof 1.

Sold for a Burning Flames Brain Bucket.

http://www.tf2outpost.com/trade/15198360

http://www.tf2outpost.com/trade/15575738

The Bucket got offered so no overpay, which makes it ~3.8 buds

Proof 2. (Thanks to Mr.Watch)

http://www.tf2outpost.com/trade/15512328

http://www.tf2outpost.com/trade/15512895

Sold for a Dr's Dapper Topper

Original value = 4.5 x 0.9 = ~4.1

Proof 3.

http://www.tf2outpost.com/trade/15257698

http://www.tf2outpost.com/item/440,2093483003

Sold for a Green Energy Stainless Pot.

The Pot got offered so no overpay, which is ~4.5 buds.

Feel free to add more proof and give feedback.