I began buying this crate along with #14 about a little over a month ago when the price was 0.33 and ever since the price has been rising. I started paying 1 refined for #13 and #14 and got hits right away. I bought around 22 total 13 & 14 combined @ 1 ref each but now people are adding me much less. Some people want 2 ref, others are selling for 1.33

My personal trade (With comments of adds): http://www.tf2outpost.com/trade/5285854

Sellers at 1 ref:

http://www.tf2outpost.com/trade/6485669

http://www.tf2outpost.com/trade/6607587

http://www.tf2outpost.com/trade/6667650

http://www.tf2outpost.com/trade/5133338 (sold out)

Sellers at 1.33:

http://www.tf2outpost.com/trade/5479127

http://www.tf2outpost.com/trade/6723605

http://www.tf2outpost.com/trade/6151516

http://www.tf2outpost.com/trade/6737049 (sold 2, 1 left in stock)

Sellers at 1.33+:

http://www.tf2outpost.com/trade/6700696 (I offered 1 ref for #13 and got shot down)

http://www.tf2outpost.com/trade/5710194 @ 1.44

http://www.tf2outpost.com/trade/6422397 @ 1.66

With given evidence we can see there is about the same amount of sellers at 1 ref as there is to 1.33.

My personal experience at buying Crate Series 13 for 1 ref has dwindled down to barely anything. I get one add a week if I am lucky. I suggest a price spread of 1-1.33 as sellers @ 1.00 are decreasing and sellers @ 1.33+ are increasing