Cheapest price on a Xbox 360 wireless controller?

[variablesunknown]

Hey all,
Lookin to buy a second wireless controller for my 360 but being a CAG I dont want to pay full price. Please post all known deals (rebates, reward zone, etc..) on wireless 360 first party controllers! Thanks for your help!

 

[EarthKing]

Costco for $38.99...The last time I checked....That was last week....On Friday...

 

[variablesunknown]

Yah, I am a costco member but I think they only have the controllers online and with shipping you only save a few bucks. Thanks though, keep em comin guys!