Yup, everyone will do what they think is best for themself.
Personally - If I was still reloading and shooting 50-85,000 rounds a year, I'd be loading primers in new cups. I have a crank press I bought for such a situation, but have never made the punch and dies to do it. I happened to be standing at a place when it was being loaded up to be hauled to the scrap year. It was in like new condition and got it for $50.
If I was only going to be loading few rounds a year(100?) for hunting or plinking, I'd either buy a 100 or reload primers. FWIW, when I was in college(early 80's) I only shot for plinking 50-100 rounds a year. I used free matches for powder and reloaded primers with strike anywhere match tips. I didn't want to use up my smokeless powder nor spring for the $1 to buy primers.
For 1000-2000 rounds a year I'd have a life time of store bought now. If didn't have them, I'd pay the current high price.
For 3000-20,000 l'd reload primers.
Yup. Popping the anvils is the thing that one likely would end up doing one at a time. The rest of it isn't done one at a time. For example, remove the dimple in multiple cups at the same time. I've never washed them nor did member Delmar. And I know he reloaded each of his at least 15 times and still considered them good. FWIW he got into guns and reloading when there were no primer to be had by the 1000s, but managed to buy 100. Also he had to make his own white powder. If using a wet mix, it will stay wet for hours.
One has to take off one's 'This is how I reload cartridges, so I need to reload primers the same way'. Even the progressive press we use to reload with are based on 1890's methods of factory loading when labor of $0.10 and hour. To reload any amount of primers, one needs to use plates. A good way to do that is to read G. Frost's book. That book was written about setting up and/or running an ammo factory for a profit. Great detail in it on using plates for both load cartridges and primers.
Boy $1500 for a set of plates. Maybe is something for someone here to do. Likely you could have them made for a few hundred. To get an idea, call a local modern machine shop and ask how much it would cost to have a hundred 1/8" holes drilled on 3/8" centers into 12 gauge steel. Of course to have them made, the holes need to be the proper sizes. Not sure what it would cost to make the pins.