Dude, those links are buyers or even quickbuyers...

Of curse they buy cheap, because they wanna resell and make profit.

If I and some friends would buy keys for 2 ref each the price wouldn't drop either.

http://www.tf2outpost.com/trade/9068441 - "i'll give you 5.33-.66 for the dead ringer"

http://www.tf2outpost.com/trade/8825046 - "Do you accept 5 Refined?"

http://www.tf2outpost.com/trade/8693310 - Several recent adds for 2 keys

No way this thing is in your range.

hopefully you realized by now that they are all buyers and only 3 of the link actually had sellers.

The third link even offers more than your suggested range.

Just some counter proof:

http://www.tf2outpost.com/trade/8693310 (Sold some for 2 keys)

http://www.tf2outpost.com/trade/9084339 (Also sold for 2 keys)

http://www.tf2outpost.com/trade/8710847 (Sold 1 for 2 keys, 1 for a merc's muffler)

http://www.tf2outpost.com/trade/9073184 (Sold for 6 ref)

http://www.tf2outpost.com/trade/9103375 (Sold for 1 key + 1.33 ref)

learn to make suggestions

Nah, I was getting randomly added when I had a few up for 1 key + 2 ref a week ago.

These should be 2 keys now, not 3.44ref. Downvoted.

Demand for this item is currently higher than the price you have showed, as indicated by the other comments.