jwolk, the difference is that when they come stock on a 996 Twin Turbo, they look like they belong in the car. When you buy an aluminum dash kit, you are getting little more than metallic stickers... and they look like metallic stickers. I have yet to see a cheap aftermarket metal dash kit that looks good.
How long will it be before cars with THIS THING -
http://www.944online.com/images/944rearspoiler2-2.JPG - starts showing up on the board? "Hi, I'm 16 and just bought a Porsh. Check out my phat new wing. I think it looks sweet, and all my Honda buddies agree!"