So how do you know it's 1.5 keys? Could be lower. Get more proof.

Unsold items could just mean that it's a low demand slow selling item. You need to find proof that people have actually completed trades at your suggested price.

Did a little more research for you.

selling for 2 keys:

http://www.tf2outpost.com/trade/8596931

http://www.tf2outpost.com/trade/8611103

http://www.tf2outpost.com/trade/8620209

http://www.tf2outpost.com/trade/8596073

http://www.tf2outpost.com/trade/8617436

http://www.tf2outpost.com/trade/8594768

http://www.tf2outpost.com/trade/8457229

Selling below 2 keys:

Found none on outpost or tf2bazaar.

Classifieds:

One listed for 1.5 keys, one listed for 5 ref, the rest of the normal craft numbers are being sold at 2 keys.

This is a very low-demand item, which is why so many are unsold at 2 keys. Doesn't mean that isn't the price, at least for now. While searching outpost I saw mostly low craft numbers being sold, and the same couple of people making offers on all the other trades. It seems nobody wants to pay this price, but as of right now it is still the price at which the item is being sold.

I think you're correct that the price of this item WILL drop, but you've jumped the gun a bit. When the sellers finally start dropping the price of this item, that's when it will be updated.

OMG!!!! items arent selling instantly, lets lower the price!