For me, personally, anywhere that I want to plug in my ATH-M50x is somewhere that I'm not moving, so I don't mind a dongle. USB-c provides enough wattage to power an external DAC and if Apple does get rid of the headphone port on the next MacBook Pro, then that's what I'll buy. (Currently I plug the headphones into the headphone port at work, but at home I have a DAC/Amplifier plugged into my monitor's digital audio out, thus the mac's audio goes over HDMI.)

I care enough about sound quality that these headphones are the only ones I'm interested in using for awhile.

Apple has enough of a track record of getting rid of things, and people thinking it's absurd for them to do so, only within a few years for it to be obviously the right move. So I trust them a fair bit.

One of the biggest examples of this is releasing a phone without physical keyboard. How absurd!

There were several years of people insisting the iPhone was going to fail, or was inferior because it didn't have a physical keyboard like the Blackberry.