If you actually need a reason to buy it...Click here for the best one I can think of.
Honestly, one of the best albums ever made.
When I was about ten a friend of mine made a copy of this album and gave it to me. I played that cassette constantly because I had never heard anything like it and...I liked it. The first time my mom heard me playing it she freaked out.

I don't think she knew what to think.
One of the few rap albums I love and I will definitely buy the re release.
P.S. Have another reason.