The outcome was determined by speed, not ethics. It was a race to be first.
And that is what the seller wanted.
Some people just want a quick smooth transaction. They are not interested in the headaches involved to try to wring every cent out of a machine and dealing with a bunch of strangers. I have gotten a couple of very good deals from people who just wanted to get rid of them and knew I had machines.
On the other hand, if someone is spending thousands of dollars on an item and is too lazy to do some research first, that is on them. Some people just buying that one machine for nostalgia, don’t care what it’s selling for half way across the country.