It's not just with Alembics. I also check eBay/craigslist/reverb.com daily. There is a blue Daion Savage guitar that has been listed by two different sellers at two diffent prices, using the same pictures. Both from Japan and both with $143 shipping. My own policy with eBay is if anything seems wrong or questionable or just doesn't feel right, I pass. As brother Paul, tbo, was fond of saying: "There will always be another".
Bill, tgo