I don't care how long ago it was posted, I'm posting it again, because it is essential that everyone reads it.
So, go here and read Malstrom's holy words now.
You won't be sorry.
Oh, and while you're at it, read this article by Malstrom, too.
Read those two? Good. Now read these.
Reading these will increase your understanding of the videogame industry so much. They're really brilliant pieces of work. So read them.
Read them now.