This price is way too high. It has low attention. Lets take a look.

http://www.tf2outpost.com/trade/10947940

Been up for only 20 hours, B/O of 4 Buds, not a single offer.

http://www.tf2outpost.com/trade/10628292

Been up for a week, no offers on the Helm

http://www.tf2outpost.com/trade/9355680

Has an offer of an Orb. Fire Bubble Pipe (2.2 Buds w/ overpay) and a Vivid Plasma Helm, does not specify which helm but

http://www.tf2outpost.com/trade/10355513

Has been up for 3 weeks at 3 buds, way below backpack.tf price, according to item history, he sold it for a Holiday Headcase to Admiral Snake, here was his trade: http://www.tf2outpost.com/trade/10774787

Sold for a Holiday Headcase as well to Ayab.

http://www.tf2outpost.com/trade/10964817

10 Hours. No offers.

http://www.tf2outpost.com/trade/8872247

Had a previous C/O of a Holiday Headcase from the guy that got another one of these helms.

http://www.tf2outpost.com/trade/8578471

Has an offer of Eerie Festive Tree + some keys which was only 2.5 Buds (With overpay) + some keys.

He sold it for a Stormy Storm Hallmark + White Bills + 2 Keys, which, at the time, was 2.9 buds (w/ overpay) + 12 Keys which is 77.25 Keys in items. The current price is 80 Keys.

What have i shown? 2 people were willing to sell theirs for 3 buds pure, and another guy from 3 months ago. Its pretty unpopular. The low value is 2.9 buds because people seem to be OK with settling with a Holiday Headcase (2.9 with overpay but can still score 3 buds with patience) and the high price is 3.3 due to the trade with the Stormy Hallmarks.