1 year outdated. #Challengeoftheweek. http://forums.backpack.tf/index.php?/topic/18297-challenges-of-the-week/

Sale #1(Sold in 2 hours. Quicksale)

http://www.tf2outpost.com/trade/21236622 b/o 1.7 buds

Sold for 29 keys pure

Total: ~1.5 buds

Sale #2

http://www.tf2outpost.com/trade/21239104

Sold for Professor's Peculiarity Miami Nights(2.8 buds * 0.9 = ~2.5 buds)

Backpack of seller

http://backpack.tf/profiles/76561198017901187?time=1405494000 Before

http://backpack.tf/profiles/76561198017901187?time=1405580400 After

Backpack of buyer

http://backpack.tf/profiles/76561198024438396?time=1405494000 Before

http://backpack.tf/profiles/76561198024438396?time=1405580400 After

Total: ~2.5 buds

Sale #3(Calling this an outlier. Sold in half an hour. Not a very accurate evaluation of the item's value)

http://www.tf2outpost.com/trade/21785156

http://www.tf2outpost.com/trade/21650108

Sold for Bombing Run Purple Energy(1.65 buds) Refer to mini sugestion

Backpack of seller

http://backpack.tf/profiles/76561198024438396?time=1407222000 Before

http://backpack.tf/profiles/76561198024438396?time=1407308400 After

Backpack of buyer

http://backpack.tf/profiles/76561198091968935?time=1407135600 Before

http://backpack.tf/profiles/76561198091968935?time=1407302026 After

Total: ~1.7 buds

Sale #4

http://www.tf2outpost.com/trade/21786347 b/o 2.4 buds

Sold for Steaming Modest pile of hats(2.25 buds * 0.9 = ~2 buds)

Backpack of seller

http://backpack.tf/profiles/76561198091968935?time=1407394800 Before

http://backpack.tf/profiles/76561198091968935?time=1407481200 After

Backpack of buyer

http://backpack.tf/profiles/76561198004136837?time=1407394800 Before

http://backpack.tf/profiles/76561198004136837?time=1407481200 After

Total: ~2 buds

Mini suggestion

Purple Energy Bombing Run

1. http://www.tf2outpost.com/trade/21650108 b/o 2 buds

2. http://www.tf2outpost.com/trade/21637841 Sold for Le Party Phanom Blizzardy Storm(1.8 buds * 0.9 = 1.6 buds)

3. http://www.tf2outpost.com/trade/21542752 Sold for Blizzardy Storm Pencil Pusher(1.9 buds * 0.9 = ~1.7 buds)

A range of 1.6-1.7 buds. Taking 1.65 buds as mini suggestion price.