Sales :

http://www.tf2outpost.com/trade/27775061 - 3 keys b/o (Credits to youtube.com/happysedits|3k subs - http://backpack.tf/u/76561198081201910 for the link)

http://www.tf2outpost.com/trade/27734564 - 3 keys b/o (Credits to youtube.com/happysedits|3k subs - http://backpack.tf/u/76561198081201910 for the link)

http://www.tf2outpost.com/trade/27775642 - 3,3 keys b/o [outlier] (Credits to youtube.com/happysedits|3k subs - http://backpack.tf/u/76561198081201910 for the link)

Seller :

http://www.tf2outpost.com/trade/27792978 - 3 keys

Unsold :

http://www.tf2outpost.com/trade/27785885 - 3 keys (2 days)

Classifieds :

http://imgur.com/l0Jlney

1 at 2,5 keys (buyer counters) | 1 at 2,9 keys (has mobile auth.) | 5 at 3 keys

Conclusion :

Don't want to set the low end at 2,9 keys on 1 classified listing so I'm going 3 keys flat.