But I don't want to rotate it. I switch hands very often, and in situations where rotating it might be uncomfortable (i.e. when holding other things).

EDIT: to clarify, it isn't just about the waiting for me. It's about the physical action being massively inconvenient compares to just shifting hands

Okay, I get what you're saying now. As an alternative, you could hold it in landscape mode - then you can press the buttons with both hands without having to rotate it.

I suppose that is a possibility. I understand what I'm looking for is kind of specific, I suppose this is in some ways similar to more and more phones ditching the headphone jack and sd card slot... The more companies all follow each other in the design space the less points of differentiation there are for consumers to choose on