Long ago I switched to left handed baitcasters. I didn't think about getting more casts but that part makes sense two. I did it cause I use so much spinning gear it just was natural for me. Often I would get strike while switching hands and lose the fish - no more. My trolling gear uses conventional reels with right hand retrieve though.
I have been toying with the idea of getting a conventional reel (with right hand retrieve) for jigging. I currently use a spoinning reel but my arm (not my hand) gets tired after a while when jigging big fish in deep water (200' +). It would be nice to switch off once in a while.