I think that there’s a changing situation in terms of both expectations and tastes relative to generations past.
I mean, I got the impression that my parents were if not happy, at least pleased to be able to get things that my grandparents and various great aunts, uncles, etc… were getting rid of, but that were still serviceable. Stuff like furniture, dishes, etc… were all things we got at various times from various older relations.
I think this was largely driven by the fact that at least as far as I know, things like dishes and furniture weren’t something you generally went and bought at Kmart; you had to go to a honest-to-God furniture store, or a department store, and they were considerably more expensive, relatively speaking to today’s discount store landscape, where you can get a 4 place setting of flatware for $10 at Target.com. I’d almost guarantee you couldn’t get a 4 place setting of flatware for less than $2 in 1975, which is the inflation-adjusted amount that $10 today would have been.
So there was more perceived value in getting secondhand flatware and furniture. And everything else; I was one of many kids who wore hand-me-downs from my cousins, and nowadays, many parents, or at least the white, middle class/upper-middle class just don’t do that, because they’re doing coordinated outfits, etc… and your brother’s kid’s old stuff doesn’t fit into that aesthetic.
Plus, I don’t know that there was really as much emphasis on design/fashion in those sorts of things back then for much the same reason- you had to pay for it.
Now you can be picky about the fashion and get it for relatively less, so people aren’t as likely to value someone else’s old stuff nearly as much.
I mean, my parents tried for decades to give crap away to me; no amount of explaining that I’ve already got all the silverware, tools, furniture, etc… that I need would ever dissuade them from continuing to try and push it at me; they couldn’t comprehend that I didn’t have a use for a whole lot more of whatever it was, I think their minds couldn’t wrap their heads around different things being relatively scarce vs. when they were younger.
As far as nostalgic stuff goes, I agree with the idea that you don’t feel nostalgic about stuff until years after it’s gone.