Sell me on Orks, Convince me to finaly start using the Orks I own.

I own a small Ork army that I have never used because, I can never find the will to actualy buy the codex and try to use the army.. I got them because I had tyranids I never used and dident like anylonger, And a friend had orks he dident want but he wanted Tyranids, So to be nice and help him out I traded my nids for his orks. But now the orks have been sitting here for almost a year and I havent used them yet.. I'v been meaning to buy the codex but.. I never manage to summon the will to order it..

So, Sell me on the Orks! Why do you love your orks? What made you play orks?