I have enjoyed this thread immensely. A perspective like yours Yankee and many others would certainly have lent itself to brass polishing and I'm sure there were folks in the towns of the period with a similar take on the possessions they took pride in. There's little doubt, I think. I live and work full time on a farm similarly to how my rural ancestors have for hundreds of years, and so I think I have some insight to the way rural people of the period saw where their efforts were most productive. Out here the barn doesn't get a coat of paint so it looks nice from the road, it gets a coat to protect the wood. The unwashed truck (the most expensive thing we own besides the farm and the big Kubota) I mentioned in an above thread can go weeks without ever leaving the farm and still gets an average of 20 miles a day put on it. It's bed is always full of bags of feed and tools and it is driven through muddy pastures, to and around the hog pens, and half its life it has had a livestock trailer hooked to it hauling Horses, Cows, Goats, Donkeys, and Mules always two hours late. Sure, I power wash the mud off when it gets 3" thick on the fenders but if I took the time to take it to town and run it through a proper car wash it would look exactly like it did before within an hour. And yep, momma's 2021 Rubicon "Reba" gets lots and lots of trips to the carwash for vacuuming and wax. Our 'polished rifle' as it were. So, in my world, 'taking care of expensive stuff' means regular service and expensive 10 ply Michelins because the dollars spent on it are balanced against what it can do, just like the tractors, side by sides, 4 wheelers, guns, and other equipment with our pride reserved for how we can make this mess of a place support our family or when giving your buddy a wink at a freehand bullseye from 50 yards after he laid one in 4" right....
So, the point of my posts in this thread is that I believe most people of the period had my view as most people of the period lived more like me than a shopkeeper of the period who perhaps closed up shop at 5 to be at home for supper and got irritated if he got mud on his good shoes. He owned a nice rifle with lots of inlays because daddy's gun was simple and he'd look more like the successful shopkeeper at the after church fencepost shoots with more polished brass on his gun that the banker who owned his store had on his gun. So did some folks ignore the first Deadly Sin and have great pride in a fine gun polished regularly? Certainly. Likely most often where a gun was more a matter of status than necessity. Did most other folks do that? I don't think so, but like I said I know it's only one point of view and there were, even in the period, certainly more than one type of person....