Uh, well, this "friend" of mine had an Excalibur for sale and told the guy that bought it it was a totally safe "investment" that was guarenteed to increase in value as the years went by.
Which, may still be true, in somebodys lifetime, probably not my "friends", but....
I had a motorcycle/moped sales and repair shop for a couple of years. My son worked for me one summer, when sales were especially brisk. He concluded two things at the end of summer. 1. That I could sell snow cones to Eskimo's. 2. He would NEVER buy anything from me.