But they are more expensive in many cases because of artificially reduced supply, not because of actual rarity. Now, for a whole bunch of people that makes absolutely no difference (if anyone needs evidence, look at the Birkin Bag, which NPR's Planet Money covered well), but for others it does.

In this case the market needs the average consumer to buy into that status symbol, and enough of them are price conscious that a cheaper alternative that almost nobody can tell is cheaper is quite a draw.