I know that this deal is not for everyone specially if you're not into groovy tech / minimal house music.
The deal is in particular for Toolroom Knights Volume 1: Mixed By Martijn Ten Velden & Paul Harris (2CD), which is £3.99.
And it there're another 2 compilations
Toolroom Knights: Mixed By Tom Novy And Wally Lopez (2CD)
Toolroom Knights: Mixed By Dirty South (2CD)
Which are quite cheap £4.53, but are available through a seller, and not directly through play.com.
If you have spotify, you can check this albums, and the possitive thing is that they are available as non stop mixes, so you won't get pestered by the ads.