I'm sure USB 3.1 headphones is just what we need! Now we can send sound at 10Gb/s to our headphones yay! Just think of how good sound sampled up to the Ghz range will sound! Plus the higher power sourcing ability of the USB 3.1 standard will mean that instead of USB 2.0 powered headphones only being able to get loud enough to damage our hearing the USB 3.1 powered ones could cause brain damage instead. Can't wait.
Oh and people are going to love all the new computers with no analog headphone outputs. It just means 90% of consumers will give up connecting external sound into devices and use the awesome internal speakers instead. Thanks Intel!