Resuggesting with more proof. (ROUNDED PRICE)

Sale 1:

Sold mine for 40 keys pure: http://imgur.com/5ynJUBD,PgO1Fub

40/12 = 3.3 buds.

Sale 2:

http://www.tf2outpost.com/trade/24955332 - creds to aaroncsn

Sold for Strange Professional Killstreak Australium Blutsauger (1.6 buds) + Strange Professional Killstreak Australium Tomislav (1.5 buds) + ~7 keys in sweets (0.6 buds) = 3.7 buds * 0.9 overpay = 3.3 buds. However the b/o of this sale was 2.5 buds, so this cannot be valued more than 2.5 buds.

These bud prices were found by removing steam market fees and then dividing by the the current price of buds in cash.