most people have their own video cards already so it doesn't make sense to pay extra for something you won't use. the integrated video is a mx 420 not exactly top of the line but fine if your not going to game to heavily.
I'll respond to your question with another question. Why doesn't everyone get the plain NF7? Who uses onboard video these days?
Actually there is an answer to your question. The latest NF7-M revision in the United States is 1.2, versus the 2.0 available with the S and vanilaa. btw, this should be in the motherboards section.
the SoundStorm audio, in analog output mode, couldn't comapre to a regular Audigy let alone Audigy 2. Analog out on NVIDIA boards sucks.
Anyway, the NF7-M and NF7-S are about the same price, but the S includes Soundstorm and SATA instead of onboard video. Since nobody really needs the onboard video, it's better to just take the Soundstorm and SATA.
You still have to follow the forum rules when you are posting. If everybody does what you did because they wanted to get faster results it would be one big mess here. Rules were made to be followed, not broken.