The best robo-effect

Also, easier than I expected

Sale #1

http://www.tf2outpost.com/trade/22259107

Sold for a pro. Killstreak australium medigun (3.3 buds), Gatsby was offered so no overpay is needed.

Sale #2

http://www.tf2outpost.com/trade/22172505

Sold for a max head – 3.3 buds

http://backpack.tf/item/76086625 - the max head in question (‘tis clean)

Pro Aussie Medi-gun mini

http://steamcommunity.com/market/listings/440/Strange%20Professional%20Killstreak%20Australium%20Medi%20Gun

Recent sales, in chronological order

$169.72

$162.12

$141.13

$140.93

$95.00 – Outlier

Average price of $153.48 * 0.85 = $130.45

Taking earbuds as $39.50 ( http://steamcommunity.com/market/listings/440/Earbuds ) gives us a value of 3.3 buds