Mirror, mirror on the door(s)......

I'm a mirror guy too and was talking to Dave at Layson's Restorations about a passenger mirror for my '64 Dart vert. Dave said the passenger mirror was a towing package add-on, and that most purists didn't like adding the passenger mirror because that mirror was mounted further back on the door. Apparently those that pick nits can't live with the passenger side mirror being placed further back. I haven't installed a passenger side door mirror yet. But I'm missing it!