These same sorts of scumbags have been hitting up Craigslist a lot lately, too. Mostly peddling "4K" projectors by brands you've never heard of, and usually from anywhere from $1000-5000. They almost always say they're getting rid of their "favorite toy" because they're having kids or some similarly lame story. If you look up those projectors, you'll see all sorts of horror stories about them. Total scams.
Look up electronics on your local CL and you'll see what I'm talking about.
Reminds me of that old Simpsons episode where Homer goes to a grey market superstore and he's looking at a Magnetbox, Sorny, and Panaphonics.