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I have no problem with the fact that the Incase SlimSleeve for various incarnations of the MacBook, MacBook Pro and MacBook Air are about $35, but why on earth, then, are their cases for the iPhone only about $5 less? Assuming both products took about the same amount of time / effort to design & engineer, how is it that about 12% of the materials command 85% of the price?

Yuck.