I just opened up my iMac to replace a dead hard drive, extending its life by years and saving me a couple grand I'd have to pay to buy a new one. I don't run a business that repairs them, but my ability to get into the machine (thanks to iFixit for the tools, parts and documentation) was a great help to me. And if I hadn't had the time or inclination to do the repair myself, I sure as hell would like for there to be a place I could take it to have it done. And before you tell me I could just "take it to a Genius Bar" I'd like to remind you that in a world where Apple is the only option, they can set whatever price they like.
As for the "they have to glue everything together to make it thin enough" arguement, I think that's marketing BS you've internalized. Apple hammers "thin thin thin" every year, but honestly would it matter to me if my iMac was 1" thicker if it meant all its components were readily replacable?
The earth can't support unlimited resource extraction forever. Making devices unrepairable for dubious aesthetic reasons is a harder and harder thing to justify.
You're talking about iMacs when the topic is laptops.
I agree "thinner and lighter" make less sense there. But I thought this topic was about laptops...