Most people are trying to sell as a set (and failing)

I've been trying to sell this for 1.66 for a while now and it just won't sell... I've sold pretty much everything else in the set that I had but this.

http://backpack.tf/classifieds/search/vox- many unsold for 1.66 (including mine which I have put up for sale several times) 1 for sale at 1.44

unsold:

http://bazaar.tf/trade/182763- offers (none, 3 week old trade)

http://bazaar.tf/trade/193881- 1.66 (no offers, 2 week old trade)

http://bazaar.tf/trade/180792- blighted beak (no offers, 2 week old trade)

http://www.tf2outpost.com/trade/10436234- 2 refined (no offers, 5 days)

Selling:

http://www.tf2outpost.com/trade/10552963- 1.55

http://www.tf2outpost.com/trade/10560935- 1.44

Offers:

http://bazaar.tf/trade/189097- offer of 1.33 (2 week old)

http://bazaar.tf/trade/201209- *auction* highest bid: 1.44

http://www.tf2outpost.com/trade/9808238- $0.35

http://www.tf2outpost.com/trade/10413396- 1.33

Bought:

http://www.tf2outpost.com/trade/10458540- for a craft hat (1.33)

http://www.tf2outpost.com/trade/10026130- 1.33

http://www.tf2outpost.com/trade/10195052- numerous at 1.33

Buying:

http://www.tf2outpost.com/trade/10098112- 1.22

http://www.tf2outpost.com/trade/10186013- 1.33

http://www.tf2outpost.com/trade/10561190- 1.44

http://www.tf2outpost.com/trade/10537286- 1.33

http://www.tf2outpost.com/trade/10478281- 1.33