Questor I didn't mean any offence in my comment...
I have both a turret press and a single stage press. I can change out the whole turret faster than, or at least as fast as, I can screw in a die with the single stage. I only have to change the turret once you must do it 3 times for a 3 die set.
When loading with a 3 die set in a single stage press you must install and remove a case at each stage. So if you are loading 200 rounds you have to at the least make 600 case swaps. With the turret you only insert the case once and move the turret (200 case swaps). When using the auto indexing feature its even quicker just 3 strokes of the ram and you have a loaded round.
I don't use the auto indexing with rifle cartridges. I could use a single stage press, but I find the turret is again quicker. I load in batches just like you do. I have bags of brass that some are just cleaned, some are sized only, some are ready to load etc. Instead of screwing dies in and out depending on which bag I use I just pop in the turret. For example if I am sizing cases and get bored and want to load up a few I just rotate the turret grab the bag with ready to load brass and go to it.
I just see it as a dang convenient way to do my reloading.