resuggesting, previous suggestion: http://backpack.tf/vote/id/54239b4cba8d8897688b47d0

Sale 1:

Sold for 289 keys (289/17) = 17

http://www.tf2outpost.com/trade/22657107

Sale 2:

Sold for *Scorching Honcho's Headgear (12*0.9) + *Purple Energy El Jefe (9*0.9) + Australium Flamethrower (1.3*0.9) + 1 buds (1) = 10.8 + 8.1 + 1.17 + 1 = 21.07 (rounding to 21)

http://www.tf2outpost.com/trade/22720711

Sale 3: (outlier, see notes)

Sold with 1 bud + Sweets (~0.61) for Arcana Ubersternmann (14*0.9) + Burning Hustler's Hallmark (12.3*0.9) + Professional Australium Grenade (>2) + Professional Australium Stickybomb (>1.5) = (12.6+11.07+>3.5) - 1.61 = ~25.56 (rounding to 25, B/O was 25: http://backpack.tf/vote/id/541cc6dfb98d8813648b46ca )

http://www.tf2outpost.com/trade/22305097

http://i.imgur.com/8ZFnsSN.png

Notes:

I did not have more realistic values on the Professional Australium Grenade and Stickybomb but of course they are definitely work more than 2 buds and 1.5 buds respectively. I only made them as '>2' and '>1.5' as the sale was well over the B/O of 25 buds.

credits to oblivion276678 for the following:

*Purple Energy El Jefe: http://www.tf2outpost.com/trade/22401209 (B/O of 9)

*Scorching Honcho's Headgear: http://www.tf2outpost.com/trade/22808605 & http://www.tf2outpost.com/trade/22691953 (B/O's of 12)

" The 25 sale was when it was 1 of 1 and 17 is a closer price to it, rather than 25, as it was made thinking the hat would be 1 of 1 for a while and made completely in unusuals/items."

Feel free to support/counter my suggestion!