Halloween is comming ( ͡° ͜ʖ ͡°)

http://backpack.tf/classifieds/search/id/52014bf3ba2536ff6c000001 - Good luck finding one below 0,66

http://www.tf2outpost.com/trade/14732866 - Sold set of 9 souls for key (~0,66 ea)

http://www.tf2outpost.com/trade/10726823 - Sold set of 9 souls for key (~0,66 ea)

http://www.tf2outpost.com/trade/14367429 - Sold set of 9 souls for key (~0,66 ea)

http://www.tf2outpost.com/trade/14171850 - 1 key offer for the set (~0,66 ea)

http://www.tf2outpost.com/trade/14690789 - 1 key offer for the set (~0,66 ea)

http://www.tf2outpost.com/trade/7950034 - Recent offer of 1 key for the set (~0,66 ea)

http://www.tf2outpost.com/trade/6018042 - Didn't took a 0,33 offer. Also a 0,5 offer (heavy and pyro soul - 1 ref for both)

http://bazaar.tf/trade/446254 - Rejected 0,33 offer

http://bazaar.tf/trade/93713 - Rejected a recent offer of 0,33 for each soul

http://www.tf2outpost.com/trade/14694549 - Rejected 3 ref offer for the 9 souls set (~0,33 ea)

Few on market.