As an avid fan of the movie I needed no added reason for purchasing this album other than the fact that it said 'Moulin Rouge!' on the cover!
But in all seriousness, this is a worthy follow-up to the first album including pretty much every piece of music from the score that wasn't included therein.
As you would expect, the second album has more instrumental pieces which, while integral to building up the feel of the movie, are probably less well-remembered. Still, there are good songs here such as 'Meet Me In The Red Room', 'The Pitch' and 'The Show Must Go On' - songs that you may have expected to have been on the first album.
Alongside these tracks are the instrumental pieces for 'Your Song' (from the rehersal montage in DVD extras and for the 'after the storm scene') and also, my personal favourite 'Bolero' - the closing music played over the credits.
Basically, if you loved the movie so much that you bought the first album, you'll love this one too.