While I was in law school, every student who had an Apple laptop had to get their laptop replaced at least once (some multiple times) over the course of our program. The biggest problem was the bulging keyboard, due to the bulging battery, but their were also numerous issues with displays and with chargers not lasting very long. Most chargers lasted at least a semester, but few of the Apple chargers lasted an entire school year. They simply weren't designed with durability in mind. Quite humorously, after one student's laptop keyboard began bulging during torts, the professor began an impromptu lecture on product liability laws.

The only PC laptops that were replaced were the ones that got damaged in accidents (car accidents, dropped off a balcony, used as a shield in self defense during a robbery, etc.). Dell Latitudes of that era were sturdy, and not noticeably heavier than their fragile Apple counterparts.