Apple designers need a new mantra, the age-old adage: "Form follows function." As it is, they're choosing a form ahead of time and compromising on function.
The vast majority of users choose Macs because of the great OS and the hardware specs. The "thinness" or "sleekness" is only a nice-to-have, and only if it doesn't require compromise elsewhere.
The vast majority of users choose Macs because of the great OS and the hardware specs. The "thinness" or "sleekness" is only a nice-to-have, and only if it doesn't require compromise elsewhere.