Apple has achieved a very clever balance of zealous early adopters willing to pay anything (and go through anything) to be among the first to get their hands on Apple's stuff - witness the iPhone craze - AND they've figured out how to get the late majority to lust after their products as well. That is amazing and rare.
One of my earlier posts was on the desire to fit in. People who buy iPods fit in. They are part of the in crowd, the so called iPod generation. People who buy iPhones stand out. And both like it like that. Chapter 1 and Chapter 3 in my eBook discusses how Apple has made this happen.
P.S. some people don't want to do either...they are closet iPod users.
BTW, my eBook is only 8 pages long so it's worth the read and won't take much of your time - perhaps I should have called it an ePamphlet.