Any computer that is limiting upgrade or repair is a garbage computer or iphone. How many years does it take for apple to realize that the MacPro 2012 "Cheese grader" was the best looking box they have ever made and also to most up-gradable. After Mojave nothing has been improved except the control of apple over each machine. We are spied on more then ever, data collection beyond believe legal or illegal. The typical woke company that love a forced society. There used to be a vision by Steve Jobs, now there has a Jim the Crook move in and everything goes to crapper. I used to be a fan of Apple and still have six MacPro's on my desk and some 43 Macbook Pro's but will likely never buy a Mac again. iPhone soon will be outdated also with the Pi Phone. So good bye Apple, you overstayed your welcome. Get at it and show the world that you can produce a decent computer with a half decent OS that can handle large amounts of data without patronizing the users by forcing garbage can when one wants to delete at once etc.