I can think of at least 3 examples where people I know bought Bose speakers and absolutely love them. Problem is none of these 3 (2 couples and a single guy) actually listened to the speakers first, and at least 2 of these didn't listent to anything else as a point of reference. I don't know about the other case.
Consequently they are happy with their purchases and firmly believe Bose offers superior value and sound. I don't even bother arguing, what's the point, they've already paid for them and it would just create friction.
I have mentioned they could sell them for a pretty penny on ebay and buy some great "new speakers". No bites yet though.

God I hope they don't run into a salesman selling silver cables or something.