I had done the DC thing in the past and new that when I started my layout this time I knew three things.
One: DC wiring is a pain if you want more than roundy round running.
Two: I wanted DCC
Three: I did not want to have to stay in one spot while running. I wanted to be where the engine was.
So remote throttles are the way to go. Even a tethered throttle would be better then a stationary one.