Apple have made the perfectly reasonable decision to maximise portability for the 99% of users who never upgrade any component, over the 1% for whom upgradability matters. To dismiss people with different priorities to yours as idiotic is, to be frank, the reason nobody liked you at school.

The benefits of Apple's approach are obvious - they have substantially reduced the bulk of each generation of machine, whilst still improving performance and battery life.

We've already been through this debate in the automotive industry. Cars used to be readily maintainable and modifiable, but miserably unreliable. Electronics and sealed units hugely increased reliability. Auto enthusiasts lamented this change as an assault on the amateur mechanic and the march of disposable consumerism, but the market never looked back. Most people don't care that they can't remap the ECU in their car and most people don't care if their RAM isn't replaceable. That's a perfectly reasonable viewpoint.