Depends. These days with hardware failure rate becoming higher (maybe it's just an illusion due to the ability of providing feedback on the Internet, but I argue that most of the old machines I know still work today but not so many with the more recent one), the next victim can be your SSD. Apple does get some good SSD from Samsung though. The benefit of a lock-down is controlling variable, and placing Apple at a higher standard (I hope they still do for software). Raising the bar so fewer people are able to customize computer helps controlling quality and also prevent wasting time on figuring out if problem was caused by foreign hardware's fault or not.