Except for when I switch my headphones to another device that uses the 3.5mm, or if I switch from in-ear to over-ear, if if I want to plug my phone into my stereo. In all those cases I have to move the dongle around.
You shouldn't need dongles to use headphones. There is no rational reason a phone can't have a headphone jack, it's just Apples insanity spreading to the rest of the phone manufacturers.