Years ago, I did batches of 100. The number of primers in a pack.
I doubt I will ever go back to a single stage press since I only load pistol ammo now. Yes, a Dillon will make short work of pistol ammo. It gives you plenty of ammo for range trips. Every order of components is harder now since I am buying bulk rather then small amounts. It does lower the cost of each round loaded. A progressive will have you filling the shelves in no time as long as you don't run out of anything. I have trouble thinking of loading most rifle ammo on anything besides a single stage.