Seems to be the cheapest price I can find for this controller and you also get a game in the bundle.
Buy this Xbox One Elite controller and get one of the selected games for free.
Free game is a choice between Gears of War 4 or Halo 5 Guardians .
Get pro-level precision with the Xbox Elite Wireless Controller, featuring an arsenal of swappable components, Hair Trigger Locks, and limitless customization with an easy-to-use app. Choose from a variety of thumbsticks, D-pads, and paddles for a tailored feel that provides game-changing accuracy and speed.
Don't forget Quidco or Topcashback @ 1.1%
Edit: Quidco is tracking at £3.