You’re fortunate, my friend. It hasn’t been a noticeable trend here because, overlaid on those motivations, folks are more savvy about the value of their junk… or at least they think they are. We now have so many TV programs such as Antiques Roadshow, Antiques Road Trip, Cash in the Attic, Bargain Hunt, Flog It! etc etc that everyone thinks they’re an expert. That’s led to unrealistic expectations of value and a progressive shortage of bargains.
We don’t have ‘thrift stores’ as such… most donated household junk ends up in what we call “Charity Shops” and has already been picked over by someone who has attempted to find selling prices for similar items on the web. Even then, the market attitude in those shops has changed in recent times. I was giving the once-over to a splendid piece of lacquerware furniture in one such shop run by the British Heart Foundation a while ago and when I looked at the price ticket it said: “Bid for me on eBay” together with the web address for the listing. That’s becoming more and more usual. Even if I don't find anything I still have pleasure just looking at it all.
PS: always helps if you say whether you need assistance on marks/identifications, or if you already know them.