its a limited consumable item... it should go nowhere but up.

I agree. One seller accepted my 0.44 offer but it is Near Impossible to find someone accepting less than 2 rec

http://www.tf2outpost.com/trade/4989885

This guy is buying for 0.55 ref. Looks like his trade has been arond for a day, he already has 7.

Maybe a range is more in order here, I don't think I'd be comfortable setting this straight to 0.66 ref.