Well the camera would cost Apple about 7 dollars maybe less. The 3g is only like 15 (both estimations) if it is another 130 for 3g I would hate to have to pay another, 60 for a camera, that probably wouldn't be near as good as the one on my macbook and would get used even less. The only time I have used my camera, is to take my login picture when I first got it.
And I believe you are in the minority, I am young as well, and I have used a webcam one time in my life and that was about three years ago when I couldn't make it home for Christmas.
You are wrong, 3g licencing fees amount to something near $120.