I kind of want this hat :3

Sale 1:

Sold for 37 keys (buds were 14.5 keys at the time)

Before: http://backpack.tf/profiles/76561198009089083?time=1423382400

After: http://backpack.tf/profiles/76561198009089083?time=1423468800

Sale 2: (outlier, also scammer alt)

(I’m not sure about this sale, but it is invalid since it involves a scammer)

Sold for a Bubbling one man army + 71.11 ref (buds were 12 keys, keys were 15.33 ref)

Before: http://backpack.tf/profiles/76561198110422207?time=1423555200

After: http://backpack.tf/profiles/76561198110422207?time=1423814400

[(13.5*0.9) + (71.11/15.33)] = 17.1386 rounding to 17 keys

I’m not going to bother with a mini because this is an obvious outlier. Here is a seller to prove the price hasn’t changed drastically: http://www.tf2outpost.com/trade/25398566

Conclusion:

1 sale at 37 keys, and an outlier / scammer sale at around 17 keys. Taking the final price at 37 keys.