I generally load a couple hundred each 38, 44, 45, and 32mag on Saturday and burn them up on Sunday. Tired of sitting at the Rockchucker for half a day at a time
Well, I would bet that even with conversion set ups you're going to spend the same amount of time doing that each Saturday because that's a lot of swapping on one press.
Unless you mean you're going to buy a few thousand brass for each cartridge and load once every three months or so. You'd see bigger benefits then I'm sure.