It's like 2 dollars on the steam market. Probably 1.33 in refined metal.
Da fudge? a key is 2.2 on market? I'd put killstreak plain original at 3-5 ref maybe.
It's really off-balanced :/ A Unique gun with simple killstreak is averaged at 2 dollars. But, killstreak weapons I've seen in trades and outpost average 1.33???