Why 17 inch more expensive than 15 inch

i've asked myself quite time: why 17 inch mbp more expensive 15 inch…

i've been searching in forum/internet etc found no real answer. when think myself 15 inch should more expensive since put same maximum specs in smaller space. making design of 15 inch more difficult. more expensive part in 17 inch display , costs alumium etc because of bigger size. (i guess 1 usb-port doesn't take $50 or so)

difference between 13 , 15 inch logical, far better processors , graphics.

have clear answer? in head says i'm overlooking simple fundamental.

 

the 17" mbp more expensive 15" because bigger, , therefore "better". how customers feel if 15" mbp started @ $1800 , 17" started @ $1700? baffled. why suvs more expensive sedans? well, part, because bigger , people willing pay more size. in fact, automobile manufacturers in trouble right because of lack of sales of suvs due high gas prices. have greater profit margin on suvs on smaller cars. difference in materials cost in both of these examples minimal. comes down people willing pay more for.

 

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