It is extremely hard to find any sellers at 1.66, and those that do sell extremely quickly

All the well-bumped sellers on OP:

1 http://backpack.tf/classifieds/search/id/520127a34bd7b8e517000000 many many at 2

2 http://www.tf2outpost.com/trade/14733570 selling 2 ref

3 http://www.tf2outpost.com/trade/14520136 selling for 2 ref

4 http://www.tf2outpost.com/trade/14643873 selling for 2 ref

5 http://www.tf2outpost.com/trade/14637614 selling for 2 ref

6 http://www.tf2outpost.com/trade/14730855 selling 2 ref

7 http://www.tf2outpost.com/trade/14562100 selling 2 ref

8 http://www.tf2outpost.com/trade/14615305 selling 2 ref

9 http://www.tf2outpost.com/trade/14639704 selling 2 ref

10 http://www.tf2outpost.com/trade/14726661 selling for 2 ref

11 http://www.tf2outpost.com/trade/14695000 selling for 2 ref

12 http://www.tf2outpost.com/trade/14578903 selling for 2.33

13 http://www.tf2outpost.com/trade/14659216 selling for 2 ref

14 http://www.tf2outpost.com/trade/14448130 wants 2 ref

15 http://www.tf2outpost.com/trade/14629478 selling for 2.33

16 http://www.tf2outpost.com/trade/14612859 selling for 2 ref

17 http://www.tf2outpost.com/trade/14700240 offers

18 http://www.tf2outpost.com/trade/14719849 selling for 2 ref

19 http://www.tf2outpost.com/trade/14714874 selling for 2.33

Solds

1 http://www.tf2outpost.com/trade/13819892 sold a few for 2.33

2 http://www.tf2outpost.com/trade/14678557 sold for 2 ref

3 http://www.tf2outpost.com/trade/14679230 sold for 2 ref

4 http://www.tf2outpost.com/trade/14245686 sold 4 at 2 ref, 1 at 2.33

5 http://www.tf2outpost.com/trade/14640015 sold 2 ref

6 http://www.tf2outpost.com/trade/14553580 offer of 2 ref

7 http://www.tf2outpost.com/trade/14650408 sold for 2 ref

8 http://www.tf2outpost.com/trade/14706763 sold 2 ref