1 year and 1 month old price, why?

Proof:

Sellers:

http://www.tf2outpost.com/trade/26381054 (never bumped, for a max ~ 24) ~ under

http://www.tf2outpost.com/trade/26297144 (20 keys) ~ under

http://www.tf2outpost.com/trade/26075189 (22) ~ under

http://www.tf2outpost.com/trade/26283390 (28) ~ mid range

Solds:

http://backpack.tf/profiles/76561198124841470?time=1433521771 (sold for a max head + key, but added a spec ks fan ~ 2 keys)

So thats 25 pure - 2 = 23 keys

Sold #2:

http://backpack.tf/profiles/76561197995976383?time=1435800792 (sold for about 14 keys pure)

Sold #3:

http://backpack.tf/profiles/76561198154973320?time=1435072263 (1 for 1'ed with a lvl 1 max so that means overpay if not lvl 1 or 7) x0.9= 22 keys

Sold #4:

http://backpack.tf/profiles/76561198128561130?time=1434766359 (added 2 keys for a stormy storm fruit shoot ~ 15.5 * 0.9 = 14 - 2 = 12)

Sold #5:

http://backpack.tf/profiles/76561198113319131?time=1433535308 (Sold for a strange pro ks original ~ 14 keys * 0.9 = 13)

Sold #6:

http://backpack.tf/profiles/76561198095978983?time=1433427798 (sold for a spec ks stickybomb launcher ~ 24 + 7 keys in other items) = 31 * 0.9 = 28 keys

Sold #7:

http://backpack.tf/profiles/76561198111024518?time=1432328357 (sold for an aussie wrench ~ 24 but added another spec ks carbo botkiller wrench ~ 2 keys) 24-2 = 22 * 0.9= 20 keys

Sold #8:

http://backpack.tf/profiles/76561198046105314?time=1433769581 (sold for a smoking fro ~ 15.5) *0.9= 14 keys

20 has been unsold for 2 weeks: http://www.tf2outpost.com/trade/26297144