The problem I have with 16GB as a upgrade is that the base model is widely available and often on sale. 16GB does exist as preconfigured option, but it is a lot harder to come by. It's mainly sold as BTO, which means you have to pay full price. That makes that extra 8GB of RAM ridiculously expensive. I mean it's already ridiculously expensive, but the fact that base models sell with huge discounts increases it even f…
Why does APPLE RAM cost so much?? (Apr 19, 2005) https://forums.macrumors.com/threads/why-does-apple-ram-cost... Maybe one day Apple will lower memory prices. I wouldn't hold my breath waiting for it...
They did the same with the storage. Even on expensive Mac Studios, even though the SSD can be taken out, it's incompatible with off the shelf SSDs. You can't even buy used, you have to go to the Apple store and pay the Apple premium for an SSD, and they reprogram your soldered SSD controller to work with the new drive.