Why do you want a headphone jack instead of embracing the future? Do you want to go back to PS/2 ports as well?
In my phone I have Bluetooth and a headphone jack. I love the choice there too.
Point being, it doesn't have to be one or the other. You can have both. And 3.5 headphone jack is not even comparable to PS/2
You would also get that with an extra USB slot instead of the PS/2.