^Clearly the agents don't buy all of their wood furniture and art and kitchen stuff at the thrift shop like reasonable people should. . . . and even electronics these days. There are some really nice flat screen TV's at thrift shop by me regularly.
Some of that "stuff" may be things like kitchen cabinets and laundry room cabinets. They were part of my "stuff" when my basement flooded and all the base cabinets had to be replaced in the laundry room.
The other issue is that it may take a lot of time to replace the items that it took a lot of time to find at thrift shops. So it depends on how urgently you would want to replace things.
I look at my hobby items - my floor loom plus bench and some accessories cost me $500 CAN, but they rarely show up for sale used. One near enough for me to drive to pick it up might show up next week, or not for a few months. A new one with the same accessories would cost, with tax, $3864 CAN. And it would be in pieces and I would have to assemble it. My New Zealand spinning wheel, bought used but still in the original box, was $600 NZ back in 2020. It is over $1000 CAN now. I recently saw one on Kijiji for $1200 CAN. Higher than retail, because for things from overseas there are huge backlogs on orders.