Or you know, maybe they like that it has an improved camera, better battery life (eg. after switching from Intel to Apple Silicon), larger color space which all

Or you know, maybe they like that it has an improved camera, better battery life (eg. after switching from Intel to Apple Silicon), larger color space which allows them to edit photos better, or the laptop got better speakers, or the laptop became more thin, or added support for fast charging, or maybe many crappy Electron apps makes them update more regularly? People can have all kinds of good reasons to update their laptop. That said, I know plenty of Mac users who upgrade maybe every 4 or 5 years.