many people are selling at 3keys and unsold and there are also quite a few on bp.tf classifiede under 3 keys that are unsold. So the price of the part is falling dramatically here are some evidence from outpost to back the high price of 3:

http://www.tf2outpost.com/trade/18956809

http://www.tf2outpost.com/trade/18938508

http://www.tf2outpost.com/trade/18953698

http://www.tf2outpost.com/trade/18943467

http://www.tf2outpost.com/trade/18953698

http://www.tf2outpost.com/trade/18791300

http://www.tf2outpost.com/trade/18950535

even though these are not actual ones that are sold which further proves the point that it is dropping fast even with people that likes to profit as those using these trading sites.