Apple locks old devices out of updates, although it takes about 10 years to do so. And after that, you can still do a workaround. Only problems is going to be when the last intel mac isn't going to be supported anymore, then the old devices will definitely be locked out.
Some people just like to have the possibility to change and completely own their stuff. Some people actually do change firmware or hardware components. I'd say it's mostly for tech enthusiasts and tinkerers.
I never claimed that it's original content :) I included the quote numbers for all the IRC posts I did, so people can look it up on bash.org . I also slightly edited the posts - adding some color coding and removing clutter info (if applicable) so it's easier to read. I would've posted as text if that formatting was available.
Apple locks old devices out of updates, although it takes about 10 years to do so. And after that, you can still do a workaround. Only problems is going to be when the last intel mac isn't going to be supported anymore, then the old devices will definitely be locked out.