Yeah who needs more than 640K right? Apple is gonna ship that puppy the minute they can say "and for an extra $ 600...one more thing" and we will all swoon like Aluminum eaters to the credit card(s).
There comes a point where the eye can no longer discern individual pixels. At that point you have a valid "who needs it" moment. While new apps and processes will require more and more memory, the eye will not see any better. But yeah, I'll throttle that CC in a second if they rolled one out.