3 links is too little to determine price.

Alright here is my research:

Unsold_____

http://www.tf2outpost.com/trade/12992933 - 3.55 (7 hours)

http://www.tf2outpost.com/trade/12910642 - 3.66 (9 hours)

http://www.tf2outpost.com/trade/12992576 - 4 ref (8 hours)

http://www.tf2outpost.com/trade/13002566 - 4 ref (2 hours)

http://www.tf2outpost.com/trade/12867987 - 4.88 (4 days)

http://www.tf2outpost.com/trade/12982546 - 5 ref (16 hours)

http://www.tf2outpost.com/trade/12852425 - 5 ref (4 days)

http://www.tf2outpost.com/trade/13005201 - 1 key (New)

http://www.tf2outpost.com/trade/12931574 - 1 key (2 days)

http://www.tf2outpost.com/trade/12910642 - 1 key (2 days)

http://www.tf2outpost.com/trade/12868807 - 2 keys (3 days)

My 2 cents; These should be coming down for awhile. People want to get rid of them and the flux of them being sold on the steam market during the summer sale has left people with larger stock wanting to get rid of them fast since they were sold cheap.

Feel free to add or support my proof

Old price (4.55 - 5.77)

Not enough proof originally provided to support suggested range. Further proof provided by andrew shows that, while a drop may be in order, low range of suggested range continues to be entirely unsupported.

A new range may be in order, but it needs a more indepth analysis and much more care put into the range. Closing for insufficient evidence, particularly of low range.