Resuggesting

Thanks blind polar bear

6 month old price

http://www.tf2outpost.com/trade/18332767 - 13 keys b/o

http://www.tf2outpost.com/trade/18293877 - 14 keys b/o - sold for 11 keys

http://www.tf2outpost.com/trade/17948472 - 13 keys b/o

http://www.tf2outpost.com/trade/18152853 - Sold for uncraft Voodoo + 8 keys = ~15 keys (outlier)

http://www.tf2outpost.com/trade/17517801 - Sold for Planets Gonzila (15-19 keys, old price) - 1 key = ~14 keys

http://www.tf2outpost.com/trade/17714546 - Sold for ??

http://www.tf2outpost.com/trade/17565683 - Sold Bubbling Ushanka (1.1-1.4, 7 month old price) + Sultan for Miami Bombin Run (1.6-2.1 buds, 8 months old price) = 0.5-0.7 buds for the Sultan =~10-14 keys

http://www.tf2outpost.com/trade/17209329 - b/o 13 keys, sold for ??

http://www.tf2outpost.com/trade/17941133 - sold for nuts grimm. grimm sells within 3 minutes for 14 keys and would be at least that after overpay - http://www.tf2outpost.com/trade/18185717

"I'd still probably favor 13-15, though I guess 13-14 would be justifiable given the other b/o at 14 in addition to the 2 at 13."

- blind polar bear

So, 13 because of b/o's, 14 because of two unusual sales (gonzila and grimm)