To me, a progressive press makes a lot of sense when you shoot a lot of the same thing. If you are loading for a police department and everyone carries a 9mm or 45ACP. A department will go through a lot of ammo for practice and qualifying. However for duty carry, i would purchase or load the ammo on a single stage press. Same thing for the guy that likes to go to the range and shoot hundreds of rounds through his AR in a week. Another scenario is someone who shoots competition and again shoots hundreds of rounds a week for practice and competition. Those are some example that I would own a progressive press for. I do not fit any of those situations. I also enjoy spending time at my reloading bench, I do not consider loading rounds a chore. I particularly enjoy the final steps of the reloading process. The priming, powder charging and bullet seating. The case prep, not so much, but I do not consider it a chore, just a necessary part of the process. I have recently bought a mini 14 and an auto pistol. They are fun to shoot and it would take a lot of reloading to keep them fed. If I was to shoot them very much, I would seriously consider a progressive press. They are not my only guns and I did not buy them for fun stuff. So what does this mean? It means it depends...it depends on if you shoot a lot of the same thing, it only makes sense to get a progressive press. If you are shooting a lot of different cartridges, maybe 100 rounds a week, but it is 20 of this one, 10 of that one, 25 of yet another, etc. I do not think that a progressive is all that cost effective. Or if you are like me and actually enjoy the time at the bench, then a progressive press is probably not for you.
Do you need a progressive press? Maybe; are you a weekend warrior, competition shooter, hate spending time at the reloading bench, then a progressive makes a lot of sense.
Good Luck and Good Shooting