> I don't think this was understood charitably. The point of the parent is that in practice, when it comes time to update one part, you'll also want to update all or most of the others. So, in practice, you will not see any of these savings.

It's frustrating to have to repeat the same point again and again. That is not correct at all. I have exercised it in practice. What you refer to as in practice are the deliberately crippled and limited options that are available in the market today.

> The potential savings may be significant, but for most people, it may be the case that the actual savings are unlikely. A modular, upgradable laptop may be a niche product for people who want to upgrade each part more frequently, not less.

Completely disagree. That's not what's seen in practice.