I have a portable reader (SD/microSD) which I almost never need on the go, and a reader built into my dock (SD/microSD/CF). Another dust-and-small-object-collecting nook is actually a downside for me. Built-in SD reader in my old MBP stopped recognizing cards (unless you push it in pressing at just the right angle, there’re a few posts on Apple discussions about this issue) after a couple of years anyway.

I’m wondering how much bigger the battery could be without all those extra ports—a top-spec M1 Max laptop would probably rival the current king, the 13" M1 MBP.