Several years or months ago, design team member and statistical expert from the marketing division, discussing the optimum weight and thickness of the new laptop line:
D: Well, if we make it any thicker, how many people do you think will complain it feels like tank armor?
S: That's easy - exactly 1 out of every 10 rumor forum members and about 1 in every 2 thousand normal users.
D: Well, if we make it just barely thick enough to hold together under normal use and stress, that's the sweet spot from a design standpoint and it will certainly appeal to fans of the light fantastic. How about the complaint factor?
S: That's easy too, exactly three out of every ten rumor forum members will complain its too fragile, even if not even one unit is returned for related repairs.
D: Man, those guys are hard to pacify! Wait! We could make it out of a solid sheet of titanium, get it really thin and have very little flex, unless someone was crazy enough to carry a running laptop around an obstacle course in one hand with the screen open! Man, that would just be asking to drop it!
S: Sorry, that won't work either, I still calculate a couple of users, people I remind you that bought the machine of their own volition, will complain it is too flexible. Of course the complaint ratio goes way up if you made it out of old decommissioned tank armor plating, nobody likes that oil-stained dark texture and it would take a muscle freak to even lift it, much less carry it.
D: Yah, guess you're right, and we did titanium once, nothing left but aluminum. Wait! Aluminum, that's it! The perfect material from both a design and esthetic standpoint. Steve will love it.
S: Yah, but the calculations still say 2 of every 10 people on the rumors forum will complain.
D: ------------------ *%$#)$%#* 'em.