Buy them - boiled ham, olive loaf, summer sausage, chopped ham, top the list - sometimes Dutch loaf. (Just as long as nobody calls them "luncheon meat".)
On a serious note, I buy the small Boars Head tavern hams and turkeys and slice my own. They last longer and taste better. For really thin sliced "cold cuts" you're gonna need a bigger slicer.
I will say that a club sandwich is so much better if I smoke the meats myself. Much better than all that injected stuff.
I almost bought a Hobart last week. Wished I had kept one from my restaurant ownership days. BUT they are a PITA to keep clean.
Buy when I use them. Usually Boar's head ham of some type, P&P loaf and liverwurst. Don't know how to make liverwurst which I love and don't have the equipment to make it anyway. Prosciutto purchased when I need some.
Using what's in the pantry I mixed some white vinegar & EVOO with some oregano, crushed garlic and a dash of kosher salt a few hours ago. Stirred it a bit and it's coming along nicely.
buy of course. Stuff like that is very expensive to make, and very time consuming. Kinda like making your own bread. From scratch. Growing the wheat and all. Just not worth the work.
I buy a lot of a small ham called Kentucky Legend. It comes sliced or not and a honey ham and a double smoked. I like the double smoked, not sliced the best. It is actually a shoulder but they call it ham. Strange, one Walmart that I shop at only has the sliced and another only has the not sliced. Grocery store that I use sometimes has it and sometimes not. I manage to keep some around though. miles