DC-3 vs SEAT
Alan L is correct; SEATs are far more flexible, reliable and cost effective than DC-3's in the fire bombing role. They are quicker to re-load, can operate in narrower valleys, and offer excellent visibility for the pilot. Additionally the Air Tractor 802 and similar types need far less ground support, shorter and narrower runways, and can be used in other roles when there are no fires.
As much as I love vintage aircraft, and would love to fly a DC-3, firebombng is not in their future.
As a stately way to do a sightseeing trip around the bay, DC-3's are an ideal platform. Let';s just hope that CASA dont follow their European counterparts and legislate them out of the air.