Well,

My recent experience with an elephant convinced me that ejectors are the only way for me.

When I doubled, I had absolutely no idea that I had done so. If I had extractors, I would have plucked the right empty out as I approached my tusker and replaced only it. In my mind I would have two barrels ready for action. In reality I would have had but one.

That both empties flew over my right shoulder allowed me to have two fresh solids at the ready.

That might not be reason enough for others but it is enough for me.