It's not the song, it's the music.

Video games isn't just something to play, it is the storyline, the background, the protagonist and his struggle, and let us not forget the original sound track.

Those who listens to what is on top40 chart, and what the radio tells them what to listen, won't experience the thrill of listening of music that just won't be heard.

Music can express more than words can ever experience, feelings that cannot be expressed in proper words, it can express an old man struggle...

or express a young's man adventure.

or express an evil man darkness... 

Or the determination to just keep on fighting on what you believe on!

but also can express love..

or can express the feelings of losing one's love...

That when you hear this special song, you feel warmth in your heart, remembering someone that was or still in your life..

So, there are so much things music can express without words, something indescribable, like the feelings you have.

So, Original sound tracks are very important.