I have gone through outpost, most of the strange pda trades and i don't see many selling for 12 keys. Alot are getting offered keys varying from 8-11 keys mainly with soem getting 12 keys, the ones getting 12 keys we're offered about 2 days ago when the price of the strange pda was worth 12-13 keys.

Proof

First of i'll show you all the trades that i found UNSOLD at 12 keys

http://www.tf2outpost.com/trade/10131641

http://www.tf2outpost.com/trade/10141226

http://www.tf2outpost.com/trade/10131530

http://www.tf2outpost.com/trade/10129698 been offered 11 pure

http://www.tf2outpost.com/trade/10136486

http://www.tf2outpost.com/trade/10134702

http://www.tf2outpost.com/trade/10123531

http://www.tf2outpost.com/trade/10140801

http://www.tf2outpost.com/trade/10131641 Got offered 10 keys pure

http://www.tf2outpost.com/trade/10108568

http://www.tf2outpost.com/trade/10128438

As you can see from the proof above not many are selling for 12 keys and a couple of them getting offers of 10 and 11 keys

In these next notes i'll show you the trade out outpost that are unsold at 11 or 11.5 keys

http://www.tf2outpost.com/trade/10112331 Unsold at 11.5 keys

http://www.tf2outpost.com/trade/10140991 Unsold at 11.5 keys

http://www.tf2outpost.com/trade/10140991 Unsold at 11.5 keys

http://www.tf2outpost.com/trade/10142029 Unsold at 11 keys

http://www.tf2outpost.com/trade/10125965 Unsold 11 keys and unsold

I found a trade even selling his/hers for 10 keys

http://www.tf2outpost.com/trade/10132028 Been offered black bills or 9 keys

Some other offers i saw going around we're getting offered 8 (low) - 11 keys

http://www.tf2outpost.com/trade/10140722 offered 8 keys (low)

http://www.tf2outpost.com/trade/9756850 Offered 10 pure

http://www.tf2outpost.com/trade/10063372 Offered 10 keys

http://www.tf2outpost.com/trade/9687910 Offered 10 pure

http://www.tf2outpost.com/trade/10038184 Been offered 10 keys

http://www.tf2outpost.com/trade/9919267 Got offered 10

http://www.tf2outpost.com/trade/9942335 Got offered 10 keys

http://www.tf2outpost.com/trade/9832288 Offered 10 keys

http://www.tf2outpost.com/trade/9418333 Got offered 10 pure

http://www.tf2outpost.com/trade/10134792 Black Bills, valued around 9 keys 2 ref - 10 keys

http://www.tf2outpost.com/trade/9859166 Offered 11 keys

http://www.tf2outpost.com/trade/10055787 Offered 11 keys

This next trade has gotten offers of 10 and 12 keys pure, but the 12 keys pure was offered 2 days ago when the Strange PDA was worth 12-13 keys

http://www.tf2outpost.com/trade/9974852 Got offered 10 and 12 keys

I'm not too sure about these next trades, they have all been offered SF Huntsman which is worth 12 keys but they have all been rejected. Now i'm not sure if this is because the SF huntsman is unliked more than the normal one or not.

http://www.tf2outpost.com/trade/10130689

http://www.tf2outpost.com/trade/9972309

http://www.tf2outpost.com/trade/10138795

http://www.tf2outpost.com/trade/10038211

http://www.tf2outpost.com/trade/9523933

http://www.tf2outpost.com/trade/9584818

Well there's all my proof i don't think it's time yet for the lowest value too drop to 10 keys, i'll leave that for the next person to decide, i just think that the high end of the value shouldn't be 12 keys since most of them stay unsold at this price