I have just got back from Costco (Watford) and they were reducing the Transformers toys.
I picked up:
Constructicon Devestator fot £21 inc VAT (I think this retailed for over £50)
Jetfire Leader class for £11
Optimus Prime leader class for £11
These are instore only and may not apply to all stores.
Great last minute pressies for amazing price!