I purchased this lens from B&H Photo in January 2012. Used it on maybe 2-3 video shoots. Mostly it sits around because I also own the 24-70mm lens. Thus, it's in great condition.
Sells for $489 new on B&H. Also included is a Canon 72mm UV Protector Filter, which sells for around $35 new.
Asking $400 + free shipping in the continental United States.
PM me.