Themed hat. It's modeled after a hat wore by Jimi Hendrix who sang "Purple Haze".

http://backpack.tf/unusuals/604/Tavish_DeGroot_Experience --For reference

Rarity:

In the wild:5

For sale on OP: 1

TF2PC consensus:

~5

http://www.tf2outpost.com/trade/7913760 (current trade)

B/O: 6

Refused:

-4 pure

http://www.tf2outpost.com/trade/6206510 (previous trade)

Refused:

-planets brainiac plus $30 (~5.2) offered by me :(

-5 pure (was tentative)

-4 pure

-burning glen. bonnet (~5)

http://backpack.tf/vote/id/50988011ba25366b2e000001

Previous suggestion. This one sold 2 months ago for:

Bliz Hallmark (2-2.5 low)+

S. Kritz (1-1.5) +

S. Huntsman (25 keys) +

S. Festive Flame (22) +

BMOC ( 25 keys) +

Vin. Luger (8.5 keys) +

Vin. Mask (7 keys) +

Big Kill (15 keys)

That was like 7.3 buds at that time, times 85% = ~6.2 buds

http://backpack.tf/vote/id/507a0ad849d7b87d79000000

Suggestion from the current accepted price (originally 4-6buds). Due to the problems with storing hat values in USD, the price has migrated way too far down. the suggestor said he got offers up to 6 in unusuals (verified) and thought 5+ was doable. Unknown final sales price. he was asking for 7. (3 months ago)

This is extremely collectable and rare. Last suggest was closed b/c there wasn't much other evidence to support the increase. With this added proof that should be enough to raise the price to a realistic range imo.

I'm setting the low @ 5 because the 5 bud unusuals are being refused. The high at 6 b/c the hat is very rare so ppl can be subborn. Ghosts is 5.1-6.3 and skull is that range too so this is very reasonable imo.