I actually had some lady with a tiny yorkie in a bag over her shoulder come up to me and Penny (my 11lbs of awesome dog) while I was walking her and comment on how big she was, then completely unsolicited tell me that her dog only weighed two pounds and she paid $2000 for it.
With a completely straight face, I replied that must make mine worth $10,000, seeing as she's five times as much Yorkie.
I don't think the lady even knew what to say to that.