Price analysis on Lithium Batteries

I found this site:
http://ehsmanager.blogspot.com/2009/04/happy-9th-birthday-lithium-ion-battery.html

and the following experience curve on Li-Ion batteries...


I would probably jump in at the $400/KWh point on the curve. For the type of batteries I am looking for in Electro, that would run me $6000.