What I especially enjoy is the "Market Adjustment" (most prevalent in new Corvettes). Where they tack on an extra $5000 "because they can."
When I was shopping for a Vette years ago, the salesman was standing beside me when I pointed this out. He said "Well...that's capitalism!" I said "No, that's assuming your customers are stupid. Would YOU buy a car from a dealership that thought of you that way?"
I cackled like the Wicked Witch of the West walking out of that place.
And don't get me started on Nitrogen Filled Tires.