Why should a medic need this if all he needs to do is to shoot people with his medigun?

Sold for 1.66

http://www.tf2outpost.com/trade/21049567

http://imgur.com/OXfsvhT

Sold for 1.44

http://www.tf2outpost.com/trade/20998157

Conclusion: Before you say something stupid like "Not enough proof, downvote", take a look on the market first. This thing is so rare now. Demand > Supply because supply of craft hats went down and it's reasonable for this thing to rise.

Feel free to counter / support my proofs.