Online NOT considered. I do not have a credit card. How rare is it to find an iphone 3G 16gb at a computer shop/random shop for $500? Or $400 for the matter-?-Impossible? My friend is offering me an iphone 3g 16gb he got a week ago for $500 dollars, but it is white (i want black damnit!), and does not include earphones. Should i go for it?