Was in Zavvi on Oxford Street yesterday and they had stacks of ROBOCOP trilogy DVD box sets for £6.
They also had them elsewhere in the store for £10 (again a big stack)!
Should mention that ROBOCOP dvd includes the multitude of extras found on the Special Edition DVD...
Documentary 'Flesh and Steel'
Production Reel with Deleted Scenes Build
Audio Commentary by Director and Screenwriter
Two Original Featurettes: 'Shooting Robocop' and 'Making Robocop'
Storyboard Comparisons with Audio Commentary
Choose The Theatrical or Director's Cut Version of Robocop
Original Theatrical Trailer
The website has it for £11.99