A test of one's decision-making. See explanation below. I I I I I I Firstly, no one would sell you the location of a million dollars in exchange for a much lower sum such as $5000. Secondly, he DID actually give you a map with an x that marks the location of the million dollars, but what he DIDN'T say is that the map also has a whole lot of other x's on it.
A little lesson in double-talk.