If want to limit your options and survivability by using 2 century old technology...
The technology you speak of is 30yrs behind the DA and about as much behind the automatic. It's all old technology, not much new under the sun in the last 100yrs.
Like I said, I don't carry a reload anyway, no matter what I'm carrying.
I understand where you're coming from, I really do. But I'm not a cop and a civilian doesn't carry for the same purposes as law enforcement. Like you said, we move away from the gunfire, not towards it. If I was a cop, I guaran-damn-tee you I wouldn't be carrying a single action revolver. Different tools for different purposes, especially if you don't have to conceal it.
For the record, I don't carry an SA all the time anyway. My primary carry weapons are an Officer's length Kimber .45 and a S&W Bodyguard .380, because they're easier to conceal. I only carry my sixguns in cool weather, when the mood strikes.