As for the new models not being upgradeable, you have to keep in mind that the vas majority of people never upgrade anything in their computers (this forum is not representative).
The guy who commented about them getting their tech-savvy relative to do it is right. Every mac owner I know has upgraded their ram, or had someone else do it for them. It's the first complaint they all have - usually "Why is google chrome going so slow?" The answer is always, 'if you want that many tabs of chrome open, you need a lot more ram.' lol. Apple is making obsolete computers, straight out of the box; and they know it. Still selling computers in 2016 with 4gb of soldered ram for $1,000+ is a joke.