If you know what the flashing lamps on the AC mean (I think most don't) and you're flying close, in some ways it can be more fun to fly old-school as you're not distracted by the dumb screen. There's a reason those battery light lamps are as bright as they are. But it seems the more advanced the Phantoms get, the more difficult it becomes. For example, on the P3A/P, they moved the IOC controls onto the screen where it used to be a hard switch on the controller. Still, if I was flying in an open field and wanted to fly old-school, I wouldn't hesitate.