The last time I went to ebay I wanted to sell my 1080 HD projector, and it is a good one. To buy a new one today, the Epson home cinema series, cost about $4000.
I bought this one for $1400 new in 2013. I tried to sell it about 4 years ago, 2021. So it was 8 years old, but it's lamp life was not even close to half over.
I listed it for $1000. The first thing non projector knowledge'd people would say, you paid $1400 for it 8 years ago and you think you can sell it for a grand?? Yes. Because of what it costs to get a new one of the kind of quality projector it is. High quality projectors hold their value, even appreciate in value.
The only returns I got were people trying to buy it for $500 or so, and they were all resellers. They wasn't buying it to use, they wanted to buy it for $500 so THEY could sell it in a store for $1000.
Meh - haven't been back there since.
And yes, I still have the projector and the 5 speaker surround sound system.