Bone-in pork shoulder is $5/lb at my store, though if you buy a huge 10 lb package it goes down to $4/lb. Boneless is $6/lb.
When I go to the restaurant supply store, I can get bulk packages for $1-$2 a pound. Granted, these are often big, but not massive.
Prices today: Tenderloins are a really good deal at $2.59/lb for around 2 pounds and can be easily separated and frozen. Pork loin(boneless, minimal trimming needed) is $2.25/lb for a 10 lb roast and can be trivially sliced into excellent chops and packed up for later. If you want to cook up some cochinita pibil, a picnic cushion with bone and skin is $1.69 for a 10lb average pack. Bone in shoulder butts are $2.05 for ~ 19lb package.
It's bit more work and more trimming, but cutting a beef strip loin or boneless ribeye into steaks nets out really well. I'll buy beef loin, trim it for a yield of 75% steaks with 15% in usable beef cubes and the rest in fat and silverskin. I render the fat and cook the nasty bits for the dog. If I only count the steak as yield, my $8/lb loin gets me NY strip steak at ~$11/lb and a bunch of free stuff. You just have to be willing and able to drop $140 on beef, cut it, pack it, and store it. It's less than two hours of work to make all the steaks and render the fat.
Inflation sucks but groceries have gotten disproportionately expensive, especially meat. The good deals are out there but it requires a lot more legwork and shopping around than before. People who go to the store and just load up the grocery basket without looking at prices, I don't know how they are even affording to live these days.
I used to buy the bone-in pork shoulder to cut up and use in pressure cooker soups but even those have doubled in price since 2021. I've had to cut back and use more beans and legumes and more bouillon and less meat since then.
My understanding was that loin (pork chops and tenderloin) price a bit higher than butt, and shoulder somewhere in between the other two, or maybe just ahead of chops.
Where I'm from, chops, bacon and sausage accounted for more than 90% of your pork intake, and I'm including pork products flavoring other dishes like soup and beans.
If you tend to think about it going up the leg and over the back, then sure. Picnic shoulder is under the shoulder, butt is over the shoulder, and loin is the back.