A lot of 2013 and previous Genuines are becoming super rare.

None on the Classifieds, and only one young seller at 1.66 and two for offers on Outpost.

SCM also supports a raise, selling consistently at around 45 cents USD.

http://steamcommunity.com/market/listings/440/Genuine%20Last%20Straw

http://www.tf2outpost.com/trade/23905663 Offered (And got rejected) at 1.55 ref

Buyers:

http://www.tf2outpost.com/trade/23054154 1.55 ref

http://www.tf2outpost.com/trade/23158285 Unsuccessful at 1.44 ref

http://www.tf2outpost.com/trade/23499531 Unsuccessful at 1.33 ref

Getting one at less than 1.55 is basically impossible, and it is the currently the most common market value.