Home Depot has the new P3 International P4460 Kill A Watt Electricity Usage Detector for $25 + $7 shipping = $32 shipped. It improves upon the original P4400 by providing direct energy cost calculations so that you can see how much your plug-in gadgets cost to leave on.
Is this the same one that regularly sells for <$20 shipped?
No, this is the model up from the one currently available from Meritline for $17.49 http://www.meritline.com/p3-international-p4400-kill-a-watt-the-electricity-detector---p-22980.aspx
Useful device, just not worth $30+
OOS @ meritline