Reopening last suggestion because the little amount of solds.

~~ Solds ~~

http://imgur.com/ymG6QwK - Sold for 5 Buds + 15 Keys

http://www.tf2outpost.com/trade/20792153 - 5 buds

http://www.tf2outpost.com/trade/20441870 - 5 buds

http://www.tf2outpost.com/trade/20313133 - sold 4 buds [outlier]

~~ Sellers ~~

http://www.tf2outpost.com/trade/20304906 - NO PRICE. Was offered 5 Buds and 15 Keys (~5.8) // flaming lantern hallmark (~5.7-6.8 outdated) and only 1 in outpost looking for 7 // Cloudy Lucky (~8.4-9.5 updated)

http://www.tf2outpost.com/trade/21485367 - NO PRICE. Was offered Scorching Snaggle (~4.8-5 updated) + 1 Bud = ~5.9

http://www.tf2outpost.com/trade/20014743 - NO PRICE. Was offered DBD Muffs (~9-10 updated)

Some "Sweets" for this suggestion to show how hard is to buy even for actual high end price http://www.tf2outpost.com/trade/21536675 and 5 Buds or the actually HIGH-END price was offered tons of times in these trades.

Note: Thanks for KoDoRiN for additional proofs of solds.