Anecdote, but... I rarely, but sometimes, need to read SD cards, for e.g. embedded systems, RPi, Nintendo Switch, etc. Not enough to go out and buy a brand new USB-C dongle which I would then lose somewhere in my house, but enough that it's annoying to not be able to use my primary laptop with it.

Don't get me wrong, I would still buy a MacBook with no SD card slot, but I would occasionally run into cases where I wish I had that dongle that I lost somewhere.