From what I’ve seen, it’s CRT televisions that are sought after by vintage gamers, not out-of-date computer monitors. There were so many truly awful CRT computer monitors out there before LCDs came around. I’m aware that there were plenty of cheap, low-quality LCDs, too, I just want to drive home the point about all the awful, .41 dot-pitch, flickering SVGA monitors with inconsistent, blotchy color that roamed the earth in the before times (i.e. the 90s).
Things like the 40 year old computer monitors have a negative value, unless they’re something special like a 21" Trinitron or an IBM T220/221.
Unless the furniture and furnishings are of a sought-after style (e.g. Art Deco), they’re basically worthless.
I sold most of my belongings back in 2009. Furniture and beds had basically zero value. A solid wood table retained decent value. Electronics were worthless unless they were vintage collectable (e.g. Rotel amplifier). eBay was the best place to sell things because people are committed. Craigslist and Facebook Marketplace are a huge time-suck because you get so many flakes, low-ballers, and tire-kickers.
I think you misunderstood the parent comment. Admittedly, it was poorly worded.