Headphone jack is overrated. Keep the DAC as close to your ears as possible if you are an audiophile. For the rest of us casual listeners, the adapter is fairly cheap and just keep one connected to your headphones (or in the headphone bag if you got one).
I am willing to accept no headphone jack only if the device supports USB-C, like my new iPad Pro and every other product I have purchased in the last 4 years.
Personally not too important to me, but I fully agree that it is time to change the port to USB-C. I am not sure why Apple is lagging behind on this, as I don't think it would have any negative effect.
