No established price. Seems to consistantly go for 2 buds. Proof below.

http://www.tf2outpost.com/trade/9783075. http://www.tf2outpost.com/trade/9669696, http://www.tf2outpost.com/trade/9614835

Buyout of 2 buds. Only offer was a Smoking Head Warmer + unkown sweets (1.5-1.9 buds+).

http://www.tf2outpost.com/trade/9536793

Yes its the same owner from above but its a different Bubbling Wraith Wrap.

Sold for a N&B Wraith Wrap + N&B Hetman (2.1-2.6) ~ 2 buds pure.

http://www.tf2outpost.com/trade/9538459, http://www.tf2outpost.com/trade/9024488, http://www.tf2outpost.com/trade/9298204

Tried selling for over 2 buds for almost a month with no success.

Had offers of 40 keys, 1.5 buds, a Stormy Lucky Shot (1.6-2), and a Bubbling Private Eye + 11 keys + Dont Starve (1.6-2).

Looks like he sold it for a Max's.

http://www.tf2outpost.com/trade/9471631

Only offer was a Max's w/ Spectral Spectrum (2.2). I went back and checked to confirm the spell.

http://www.tf2outpost.com/trade/8995422

Only offer was 2 buds.