Currently at the classifieds:

5 x 40 keys (one is gifted but has parts, another one has parts as well)

Outpost:

Selling under 40 keys:

http://www.tf2outpost.com/trade/19944280 (39)

Selling at 40 - 41 keys

http://www.tf2outpost.com/trade/19965542 (40)

http://www.tf2outpost.com/trade/19889039 (40)

http://www.tf2outpost.com/trade/19890268 (40)

http://www.tf2outpost.com/trade/19966392 (40)

http://www.tf2outpost.com/trade/19930699 (40; has parts)

http://www.tf2outpost.com/trade/19715703 (41)

Unsolds:

http://www.tf2outpost.com/trade/19799141

http://www.tf2outpost.com/trade/19949408 (young)

http://www.tf2outpost.com/trade/19905448

http://www.tf2outpost.com/trade/19907369 (unbumped)

http://www.tf2outpost.com/trade/19781838

Conclusion: Too many people are highballing their strange kritzkrieg/not accepting the price is going down. Also, the market is flooded with killstreak ones, which lowers the supply of clean strange ones.