I haven't been keeping up on this, what's the difference between the two versions and the original?

@Eeko The three versions are Discovery, Experience and Immersion. the Discovery version is just the regular 2-disc album, remastered (this was already released along with the other 13 Pink Floyd Discovery edition albums). The Experience Edition includes bonus content. In the case of The Wall, this bonus content is the live version of The Wall (this version was previously released as "Is There Anybody Out There? The Wall Live 1980–81"). The Immersion edition is a large box set including 7 discs (one of which being a DVD documentary about The Wall), and plenty of memorabilia.

Went to see Roger Waters' performance of The Wall at the L.A. Memorial Coliseum. It would change your life, Bossman... 0.o